Sonic 1 published by EA is a hypothetical ROM hack (it might not actually exist) which changes the game's publisher to Electronic Arts. This is likely a purely aesthetic change, replacing the Sega logo or credits with those of EA. The game's actual gameplay and contents would likely remain identical to the original. This ROM hack is likely a simple modification made for humorous effect, not a substantial alteration to the gameplay itself.

Sonic 1 published by EA

Sonic 1 Pink Edition