Challenger Tetris - Version 1.5 Do you think you can play Tetris well? Well, this game will challenge you! You will have to apply the best of your skills to be successful in this one and we are sure you will not be bored! The rules of Challenger Tetris are similar to those of a regular tetris game, however here you will not only be putting the blocks in nice even layers but also going through levels that contain various tricky tasks.