From Sonic Retro

Sonic1 MD Sprite Monitors.png

Invincibility, also known as InvincibleMedia:Chaotix_32X_US_manual.pdf[1]Media:SM_PC_DIGITAL_MANUAL_UK_V10_LR.pdf[2] and known as Muteki (無敵) in Japan, is a power-up found in most Sonic games, obtained by breaking a monitor marked with four-pointed stars or a sparkling shield. It temporarily protects the player from harm, as well as allowing them to destroy most enemies by touching them. While the player is immune to most traps and attacks, it is still possible to be killed by being crushed, drowning, falling off the level, or (in Sonic & Knuckles) losing all their rings to Toxomister's smoke (which they are not invincible from).

While invincible, the player is surrounded by a sparkling effect which varies in appearance from game to game. In the 2D Mega Drive-era games, characters were surrounded by flickering stars, while in 3D Invincibility tends to take the form of a rainbow aura.



Items in the Sonic the Hedgehog Game Series
Collectibles   Ring | Super Ring | Special Ring | Rich Ring | Heal Ring | Red Star Ring | Number Ring | Silver Moon Ring | Sonic Medal | Sun Medal | Moon Medal | Sun Tablet | Moon Tablet | Planet Tablet | Secret Item | Red Orbs | Blue Orbs | Green Orbs | Emblem | Chaos Drives | Special Stage Key | Material | Portal Gear | Memory Token | Vault Key | Red Seed of Power | Blue Seed of Defense | Dream Orb
Power-ups   Shield (Water, Lightning, Fire, Gold, Magnetic) | Invincibility | Power Sneakers | Rocket Shoes | Propeller Shoes | Hyper Heli-Tails | Eggman Mark | Super Ring | Combine Ring | Forcejewel | Power Core | Light Cores | Special Combination
Level Objects   Item Box | Item Panel | Spring | Spring Pole | Crane Lift | Dash Rail | Spikes | Checkpoint | Time Warp Plate | Signpost | Goal Ring | Hidden Treasure Ring | Giant Ring | Dash Ring | Rainbow Ring | Capsule | Crate | Water Barrel | Button | Dark Energy Key | Bumper | Speed Booster | Air bubbles | Chao container
Powerful Items   Chaos Emeralds | Super Emeralds | Master Emerald | Time Stones | Chaos Rings | Precioustone | Sol Emeralds | Jeweled Scepter | World Rings | Excalibur | Phantom Ruby | Reverie | Dream Core
Weapons   Piko Piko Hammer | Chaos Energy Cannon | Caliburn | Wispon
Devices   Remote Robot | Combi Confiner | Mother Computer | Nega's Camera | Arks of the Cosmos | Miles Electric
Other   Chili Dog | Fortune Cards | Speed Down Boots | Chao Egg | Scepter of Darkness | Cacophonic Conch