ToeJam & Earl is a comedy action-adventure created by Johnson-Voorsanger Productions for the SEGA Mega Drive/Genesis in 1991.
The two aliens must find the ten pieces of their broken ship, exploring several randomly generated levels. One of the best elements of the game is the 2-player mode that allows two friends to play together on a dynamic split-screen (same screen when they are close, split screen when they are far).
Co-op mode, excellent gameplay, many power-ups to collect, funny enemies, random levels, and beautiful cutscenes. This is one of the most appreciated Genesis games ever made.