This can be a reference to naming the enemies. US names are first as found in the instruction manuals. The JP names are mostly based off of names listed at GHZ the website, which were probably all taken from the JP manuals.
Sonic 1 (16-bit) June 23, 1991
- Ball Hog: Ton-ton (トントン) -- Pig bots that hop in place atop steep banks and roll balls down the slope. ("Ton" is a prefix used to identify several Japanese pork dishes.)
- Batbrain: Basaran (バサラン) -- Bat bots that latch onto ceilings until approached, then drop down and fly through the air a ways before returning to their roost.
- Bomb (enemy): (NOT NAMED IN US MANUAL) Bomb (ボム) -- Mindless kamikaze bots that waddle along the ground or ceiling and explode into a shower of projectiles when approached. They can't be damaged, only avoided.
- Burrobot: Mogurin (モグリン) -- Mole bots that spring from below ground and roll along the surface. Look for their drill bit noses poking out of the earth to avoid a booty ambush. ("Mogura" is Japanese for mole while "moguri" means diver.)
- Buzz Bomber: Beeton (ビートン) -- Bee bots that fly across from the right side of the screen, pausing once to fire a large flashing projectile downward.
- Caterkiller: Nal (ナール) -- Caterpillar bots that crawl slowly along the ground. The safest method of disposal is to roll into their spherical noggins: venture a poke anywhere else and you'll sustain damage and send their segments flying.
- Chopper: Bata-bata (バタバタ) -- Piranha bots that leap upward from beneath bridges. ("Bata-bata" is Japanese for a clattering noise.)
- Crabmeat: Gani-gani (ガニガニ) -- Crab bots that crawl along the ground and fire projectiles from their pincers. ("Kani" is Japanese for crab.)
- Jaws: Puku-puku (プクプク) -- Piranha bots that swim around underwater. ("Puku-puku" is Japanese onomatopoeia for a bubbling noise.)
- Moto Bug: Motora (モトラ) -- Beetle bots that roll innocently along the ground.
- Newtron: Meleon (メレオン) -- These chameleon bots hang out on the side of cliffs and remain invisible until approached. They come in two flavors: blue ones transform into missiles and jet along the ground. Green ones appear just long enough to fire an energy blast at Sonic.
- Roller: Arma (アルマ) -- Armadillo bots that roll down long slopes after Sonic. They tumble faster than Sonic runs, so leap to avoid being steamrolled. At the bottom of the hill, Arma pauses and briefly opens up: this your only chance to attack.
- Uni-uni: (NOT NAMED IN US MANUAL) Uni-uni (ウニウニ) -- These guys, palette aside, look exactly like Unidus. They're a bit more cool-headed, though, and won't fire off their barrier of orbs. While this means you don't have that tricky attack to avoid, they're virtually impossible to hit.
- Unidus: (NOT NAMED IN US MANUAL) Unidus (ウニダス) -- Irritable sphere bots that hover around very slowly. They're orbited by 4 spiked balls which they fling off in rapid succession upon being approached. It's a dangerous assault, but once it's done, Unidus is completely open to attack. ("Uni" is Japanese for sea urchin.)
- Yadrin (NOT NAMED IN US MANUAL) Yadorin (ヤドリン) -- Hermit crab bots that crawl along the ground. Their shells are cloaked with spikes, making them invulnerable from above. ("Yadokari" is Japanese for hermit crab.)
Sonic 1 (8-bit) December 1991
The enemies are all re-used from the 16-bit game.
Sonic 2 (16-bit) November 24, 1992
- Aquis: Seadra (シードラ) -- Sea horse bots that hover around and fire oil balls. ("Seadra" is short for sea dragon.)
- Asteron: Telstar (テルスター) -- Kamikaze star bots that hover in place until Sonic approaches, then explode into a shower of spikes.
- Balkiry: Valkyn (バルキーン) -- Sleek fighter plane bots that dash across the screen from right to left.
- Buzzer: Stinger (スティンガー) -- Wasp bots based on Buzz Bomber. They fly around and occasionally pause to fire a poorly-aimed flashing projectile.
- Chop Chop: Piranha (ピラーナ) -- Piranha bots that swim in place and lunge mindlessly at Sonic as soon as he approaches. Don't worry about them if they miss, because they aren't smart enough to swim back and try again.
- Clucker: Kokekko (コケッコー) -- Chicken bots that dutifully man the Wing Fortress' artillery and fire egg bullets. They can only be destroyed from directly above. ("Kokekko" is the Japanese equivalent of cluck.)
- Coconuts: Ai-ai (アイアイ) -- Monkey bots that hang around in palm trees and very inconsiderately toss coconuts at Sonic as he passes by.
- Crawl: Guardon (ガードン) -- Heavily-armed crab bots that can't be damaged from the front or above. The only way to take them out is to roll into them from behind.
- Crawlton: Zakin (ザキーン) -- Centipede bots found crammed in various platform corners. When Sonic approaches, they whip out to attack, then curl back in and try it again. Aim for the spherical noggin, Zakin's only weak point.
- Flasher: (SAME NAME IN BOTH MANUALS) Flasher (フラッシャー) -- Firefly bots that fly around and occasionally stop to light up for a few moments. They can't be damaged while lit.
- Grabber: (SAME NAME IN BOTH MANUALS) Grabber (グラバー) -- Spider bots that glide along ceilings. If Sonic approaches underneath, Grabber will drop down and pluck the hapless hog from the ground, then self-destruct with his victim in tow.
- Grounder: Handrill (ハンドリル) -- Mole bots loosely based on Burrobot. They bust out of cliffs in the background and roll along the ground.
- Spiny: Lander (ランダー) -- Slow-moving bots that crawl along the ground or wall and periodically spout flashing projectiles.
- Masher: Gabuccho (ガブッチョ) -- Piranha bots based on Chopper. They hop up and down over waterfalls. ("Gabu-gabu" is Japanese for gulp or guzzle.)
- Nebula: Potosu (ポトス) -- Well-armored bots that hover in midair, then rise and poop spiked balls when Sonic and Tails approach. ("Poto-poto" means to trickle down in thick drops.)
- Octus: Octar (オクター) -- Octopus bots that sit in place, then spin into the air to fire flashing projectiles.
- Rexon: Zaura (ザウラ) -- Plesiosaur bots that sit around in lava pits. Their heads bob around on top of their long, wobbly necks and fire projectiles, but it's safe to land on their round backs, which remain in the lava even after the head has been destroyed.
- Shellcracker: Kani Punch (カニパンチ) -- Fiddler crab bots that crawl slowly along the ground and attack with spring-loaded pincers. Since they're usually found in narrow passages that don't offer much jumping space, it's a difficult attack to avoid. ("Kani" is Japanese for crab.)
- Slicer: Kamakiller (カマキラー) -- Mantis bots that waddle along the ground and pause to fling their sickle-like arms. The attack is nigh impossible to avoid, but once it's out of the way, the bots are immobile and completely defenseless. ("Kamakiri" is Japanese for mantis.)
- Sol: Gola (ゴーラ) -- These guys look and act just like Orbinaut, except they're armed with fireballs instead of spiked orbs.
- Spiker: Tsun-tsun (ツンツン) -- Bots armed with pointy spiked shells. They crawl slowly along the ground or ceiling and fire their spiral shells straight upward (or downward), leaving them completely defenseless. ("Tsun-tsun" is Japanese for pointed.)
- Turtloid: Dawson (ドースン) -- Little tortoise bots that stand on big tortoise bots. As long as the little one is around, he'll make the big one fire flashing projectiles. Destroy junior and poppa becomes a harmless platform.
- Whisp: Bun-bun (ブンブン) -- Annoying horsefly bots that buzz around in Sonic's face. They're usually found in pairs. ("Bun-bun" is Japanese for buzz.)
Sonic 2 (8-bit) Oct. 29 1992
- Taraban (タラバン) -- Crab bots based on Crabmeat. They move back and forth along the ground, pausing every once in a while to fire flashing projectiles in either direction. ("Tarabagani" is Japanese for king crab.)
- New Motora (ニュー・モトラ) -- Beetle bots based on Motobug. They roll innocuously along the ground.
- Newtron: (FROM SONIC 1) Meleon (メレオン) -- Meleon returns to do what he does best: hang around being invisible until Sonic approaches. The robo chameleon will appear just long enough to fire a flashing projectile.
- Game-game (ガメガメ) -- Turtle bots that quickly turn into spinning blades of doom as soon as they're approached. They fly off toward Sonic like frisbees. ("Kame" is Japanese for turtle.)
- Zaririn (ザリリン) -- Crayfish bots that float around underwater and charge at approaching hedgehogs. ("Zarigani" is Japanese for crayfish.)
- Drillin (ドリリン) -- (MANUAL CALLS THEM BURROWBOT) Mole bots based on Burrobot. They roll back and forth along the ground, but when Sonic approaches, they turn into jumping fools.
- Buton (ブートン) -- Pig bots based on Ball Hog. They don't toss balls anymore, but they are capable of movement, hopping along the ground. ("Buu" is Japanese for oink.)
- Bomb (ボム) -- (FROM SONIC 1) They're bigger than they used to be, but their attack patterns are the same: as soon as Sonic approaches, they explode into a shower of flashing projectiles.
- ??? -- Fish bots that "swim" slowly through the air, usually in small schools of 2 or 3.
Hivebrain has different names for these bosses.
Sonic CD November 19, 1993
- Names Known
- Anton: Anton (アントン) -- Unicycled ant bots that roll back and forth along the ground. The damaged ones simply look rather depressed, and putter along slower than their more cheerful brethren.
- Bata-pyon: Batapyon (バタピョン) -- Grasshopper bots that spring around gleefully. The damaged ones spring slower and not so gleefully. ("Batta" is Japanese for grasshopper while "pyon-pyon" means hop.)
- Kama-Kama: Kama-kama (カマカマ) -- Mantis bots that roll along the ground and fling their sickle-like arms at Sonic. The blades can be deflected with a spin, leaving Kama-kama helpless. ("Kamakiri" is Japanese for mantis.)
- Mecha-Bu: Mechabu (メカブ) -- Kabutomushi beetle bots with razor wheel schnozzes. They roll slowly along the ground, raising and lowering their buzz saw helmets, but they never turn around. The damaged ones look the same, but can't move their blades.
- Mosqui: Mosqui (モスキー) -- Kamikaze mosquito bots that fly in a straight line, but immediately nose down and jam their pointy nasal units into the ground as soon as Sonic passes underneath. The damaged ones fly a bit slower.
- Pata-Bata: Patabata (パタバタ) -- Butterfly bots that flutter around in a zig-zag motion. The damaged ones fly slower.
- Poh-Bee: Pohbee (ポービー) -- Chunky bee bots based on Buzz Bomber. They fly through the air and fire flashing projectiles. The damages ones fly slower and can't shoot.
- Anton (アントン) -- Unicycled ant bots that roll back and forth along the ground. Blue and red body, yellow wheels. The damaged ones simply look rather depressed, and putter along slower than their more cheerful brethren.
- Taga-Taga (タガタガ) -- Giant water bug bots that hop in and out of waterfalls, ala Chopper. They have no broken form.
- Taga-Taga (タガタガ) -- This version of Taga-Taga swims in a straight line from left to right. As Sonic approaches, he'll fire off the three spikes on his back, then dash away. The damaged version doesn't have the three spikes to begin with, so he just kind of putters back and forth helplessly.
- Kumo-Kumo (クモクモ) -- Springy spider bots that can't move along the ground, but leap high into the air. As they leap, they fire a web of sticky gunk onto the ground: run into it and Sonic becomes momentarily stuck. The broken ones don't leap as high and can't sling web. ("Kumo" is Japanese for spider.)
- Sasori (サーソリー) -- Scorpion bots that roll along the ground and fire laster shots from their tails. The damaged ones move slower and don't have tail lasers. ("Sasori" is Japanese for scorpion.)
- Noro-Noro (ノロノロ) -- Snail bots that squirm slowly along the ground. Spikes occasionally thrust out from their shells, and it goes without saying that you should not attempt an overhead assault at this moment. The damaged ones lack the built-in spike trap. ("Noro-noro" is Japanese for slow or sluggish.)
- Poh-Bee (ポービー) -- This version of Poh-Bee lugs swinging dual maces. The damaged ones look the same, except they fly slower and only swing a single mace.
- Kamemusi -- Beetle bots that roll back and forth along the ground, pausing occasionally to fire a pair of flashing projectiles from their ass ends. The damaged ones (which don't look any different) roll slower and, though they put forth a valiant effort, are incapable of firing projectiles. ("Kamemusi" is Japanese for stink bug.)
- Ga -- Cicada bots that hang around on walls, then fly off in a zig-zag pattern as Sonic approaches. The functional ones leave little trails of harmless sparkle dust while the damaged ones do not. ("Ga" is Japanese for moth.)
- Tentou -- Ladybird bots that hover along the ground and slowly fly away as Sonic approaches. As they retreat, they drop mines that explode after a few seconds. The damaged ones don't drop bomb turds. ("Tentoumushi" is Japanese for ladybird.)
- Tonbo -- Dragonfly bots that fly around over a small area. The damaged ones move slower. ("Tonbo" is Japanese for dragonfly.)
- Amenbo -- Water strider bots that glide along the surface of the water and fire flashing projectiles. The damaged ones glide slower and have no projectiles to fire. ("Amenbo" is Japanese for water strider.)
- Yago -- Dragonfly larva bots that swim along the sea floor very slowly, then suddenly lunge toward Sonic as soon as he approaches. The damaged ones just kind of hop... ("Yago" is Japanese for dragonfly larva.)
- Kemusi -- Caterpillar bots reminescent of Caterkiller. They squirm slowly along the ground and can only be damaged on their spikeless noggins. Hit them anywhere else and Sonic takes damage. The broken ones are totally spike-free, and can be smacked anywhere you please. ("Kemusi" is Japanese for caterpillar.)
- Semi -- Cicada bots that hang out on the wall and fly away when approached, dropping bombs in their wake. The damaged ones ain't got no bombs to drop. ("Semi" is Japanese for cicada.)
- Minomusi -- Bagworm bots that hide in overhangs and drop down as Sonic approaches. After a few moments they sprout spikes, then zip back into their hiding place. The damaged ones are spikeless. ("Minomusi" is Japanese for bagworm.)
- Kanabun -- Bizarre winged beetle bots that fly spiral patterns in and out of the background. You can only make physical contact when they're on the same plane as Sonic. The damaged ones fly slower. ("Kanabun" is Japanese for beetle.)
- Kabasira -- Tiny mosquito bots that fly in a swarm trailing behind each other. If Sonic approaches, they'll fire a mosquito bot in his direction. The damaged ones look the same, but fly slower and lack the ability to sling mosquito bots. ("Kabasira" is Japanese for mosquito column or swarm.)
- Dango -- Pill bug enemies that crawl slowly along the ground, but curl up into a speedy roll as soon as Sonic approaches. These guys have no damaged form. ("Dangomushi" is Japanese for pill bug.)
- Dango -- Pill bug bots identical to the ones from Stardust Speedway save color. Damaged ones roll slower. ("Dangomushi" is Japanese for pill bug.)
- Hotaru -- Firefly bots that always fly in pairs: as soon as Sonic approaches, they lock themselves into position above and below, then fire an electric jolt between. Once their attack is spent, they fly away. The damaged ones try the shock treatment, but don't succeed at anything more than a harmless flash. (Hotaru is Japanese for firefly.)
- Scarab -- These grabby bots won't damage Sonic if they get hold of him, but they'll force him into his spin posture and send him rolling into whatever dangers may lie beyond. Occasionally they carry Item Boxes. The damaged ones look the same, but move slower. ("Scarab" is a type of dung beetle.)
- Bigbom -- Walking bomb bots that are like Bomb, but much larger. As soon as Sonic approaches, they follow (very, very quickly) and self-destruct into a shower of flashing projectiles. They can't be damaged, only avoided.
Sonic Spinball November 23, 1993