Your brother has been kidnapped by terrorists who ask for huge sum of money as ransom which is out of your ability! Mario Brother 1 is an adventure game on www.flash-game.net in which Mario and you have to dodge the bad guys and get to the end of each level to save your brother. Jump to pass gaps and avoid enemies. The terrain is kind of complicated so you need to be very careful otherwise you are easy to lose your game. Your brother is waiting for you! Good luck!