Using this underwater makes Gex blow air bubbles instead, and inhalable ones can only be spawned when tongue lashing to the left. Firefly (red) - Gives Gex the ability to shoot a fireball from his mouth while tongue lashing.Ladybug - Replenishes Gex’s hit point counter to the maximum amount.Paw Print - Adds one hit point to Gex’s hit counter (located at the top right corner of the screen, maximum is 6).Eating one of these grants Gex with the following until he gets hit: In addition to the altered gameplay, there’s also Power-Ups. There’s also yellow remotes that give access to Special Stages, replacing the 50 rings requirement, but you’ll still need the normal stage remote. Neither signposts nor any bosses will spawn without it, except for the Final Zone boss. Just like in the original Gex games, you must find a TV remote to progress which is hidden somewhere in each act (including boss acts), so exploration and visiting different areas and routes is key to completing the game. A - Tail Whip (can also be used in-air and when crouching).B - Tongue Lash / Use Power-Up (hold B to Run, Tongue Lash can also be used when looking up, in-air or crouching).C - Jump / Swim Underwater (hold Down in-air to Tail Bounce, pressing Up immediately after a Tail Bounce increases height).This hack attempts to implement gameplay from Gex (1995), meaning the controls are slightly different than normal (minus wall climbing, which hasn’t been implemented yet): This build is the most recent version released, originally seen at SHC2020, and must be patched to the Rev0 version of Sonic the Hedgehog to work properly (patching to Rev1 crashes the game upon booting up). This is a Sonic 1 hack made by JoenickROS, with sprites originally made by PacManfan64 and Gecko1993, and additional coding by MarkeyJester and Natsumi.

Sonic 1 sprite hacking