Sonic X-treme enemies

Sonic X-treme

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Through the course of development of Sonic X-treme, quite a few enemy concepts were created by the team to be implemented into the game. Though many were sketched out, only a select few were then turned into sprited enemies to be used as obstacles against Sonic the Hedgehog as he ventured through what was meant to be his first three-dimensional game.

Concept art

The following is a gallery of enemy concept art drawn by lead designer Chris Senn, taken from his Sonic Xtreme Compendium.

Includes concept art of Boomber.
Includes concept art of Pin Tut.
Concept art of Snooter.
Further concept art of Snooter.
Concept art of Flame Drone.
Concept art of Ribbot.
Further concept art of Ribbot.
Further concept art of Ribbot.
Concept art of Lightbug.
Concept art of Trunkbot.
Further concept art of Trunkbot.
Concept art of Pihrana.
Further concept art of Lightbug.
Purplebot
Spinner
Further concept art of Trunkbot.
Concept art of Ball Drone
Various early concept art by Chris Senn.
Rick Star
Early enemy design meant for Tiara Boobowski when she was considered as a playable character.

Enemy sprites

Though nearly all the sprites below are colored red, the enemies in the game were designed to have two forms, determined by color. For example, if an enemy was colored blue, it would represent an easy enemy, while if it was colored red, it would be a harder encounter. Each zone was to have its own set of easy/hard color combinations, making each encounter a memorable and unpredictable one.