Jupiter Jump is a fiendishly tricky endless bouncing game starring a hapless astronaut. The idea is to keep jumping in order to avoid the mines and get through the green gates.
Although the controls are very simple (you just tap to bounce), you never really feel like you're fully in command of things. The way the little spaceman bounces is very unpredictable so it often feels like it's more about luck than skill.
Jupiter Jump has a great retro feel, complete with a cool chiptune soundtrack.