Use the arrows for directions, Z for A, X for B, Enter to Start, and Space to Select. The game was never supposed to be a Mario game at all In Japan, it was Doki Doki Panic but for some reason they released it in the USA as Super Mario 2 and the rest is history. Once again, Princess Peach has been kidnapped by Bowser and taken to his castle, so you, like Mario or Luigi, have to go on an adventure through the Kappa kingdom, where you have to run, jump, and hit monsters on top of their head to kill them, hit bricks to grab mushrooms that give you powers, or hit bricks to collect coins, or simply grab them from the courses. Super Mario Bros 2 is very different than all the other Super Mario Bros games for the NES and for a very good reason. X.Unblocked 720 Games: Super Mario CrossOver 2.Super Smash Flash 2 Unblocked 720 Games: Super Mario CrossOver. You can now play Super Mario Bros 2 online unblocked directly from your browsers without needing any downloads or emulators, which is something we are sure you will do right now since our classic retro/old games are always a highlight of our content, and this one is a staple of the video game world, so why would you not try it out right away? Super Mario Bros 2: more fun, more adventures! Super Mario.Play online game Super Mario Bros.