Pineapple Apocalypse RPG is a 2D turn based RPG with overly pixelated retro style graphics. You play as a robot and there are apparently mutated pineapples along with other enemies that you can encounter. There is no real plot or NPCs or story progression though just an open world to wander around in well fighting and level grinding.

http://wiibrew.org/wiki/Pineapple_Apocalypse_RPG