Sonic The Hedgehog - Genesis (U)(Trashman) is a ROM hack or modification of a Sonic game, probably aiming to recreate the Genesis era Sonic games on the Game Boy Advance system.  The '(U)(Trashman)' likely references the region and the individual or group responsible for creating this fan-made version. It's not a Sega release.  The main goal of the hack appears to be to port or emulate a Genesis-era Sonic experience onto the GBA, offering a unique fan-made alternative.

Sonic The Hedgehog - Genesis (U)(Trashman)

Sonic Pinball Party (E)(Endless Piracy)