This challenging game pits one side of your brain against the other. The screen is split into two halves with a mini game on each. Your job is to try to win both at the same time. Games are common sense things that would be easy if you were playing just one but when you're tasked to play one with each hand things get a little trickier. Complete math problems, defeat aliens or simply tap the screen the specified amount of times. Run out of time or get three questions wrong and you lose. There are only two screens, playing the game and getting your score summary, so you only have to focus on beating the games. Find more apps in our Top 5 Best Puzzle Games.