Play online Super Mario Bros Vs Ufo game for free, Mario games , Super Mario games and Super Mario Bros games . In the distant Tetris planet, there is an evil aliens.Their home is composed by Tetris. When they discovered that the earth, they attempted to occupy the Earth by building Tetris.As the leader of the Earth heros, Mario Brothers come forward.So a battle to defend the Earth began. Controls: P1:AD to move,W to jump, click S to put up/down Tetris,press S to rotate Tetris when hold it. p2:' to move,' to jump, click' to put up/down Tetris,press' rotate Tetris when hold it. Do not forget to tell your friends to come play our Free Mario Games.