Screenshot from Game. ©2019 Nintendo Co-Developed by LINE and NHN I don’t play very many Android apps, but since Nintendo started making mobile apps, I thought I’d check out the Dr. Mario World Android app. First, I’ll start by saying this version of Dr Mario is not the Tetris style game like on the NES. But, it’s almost like an “upside down Tetris”. Where instead of the pills falling downward, they float upward towards the viruses and you can flip and direct the pills to go almost wherever you want them to.