The world is being conquered by the evil of Warlior and and his army of tanks, the only hope is you, a brave warrior who at the controls of a super tank will have to face to face the dreaded Warlior. Use powerful weapons to defeat your enemies, fight with powerful final bosses.

Release notes:

Features
– Seven diferent screens including final boss level
– Great bg music
– Great sfx sounds XD
– Many enemys with basic Ai system
– three files to save

Known Bugs
– the collisions are not very accurate
– sometimes the game freezes (maybe not XD)

http://wiibrew.org/wiki/Robo_tank