Radioactive Jack is a puzzle strategy game where the difficulty increases slowly to get you used to the game. It is a very addictive game and hard to put down after the first few levels! Simply move Jack with the arrow keys and move blocks to the outlined Xs on the screen. You'll have to be sure to not box yourself in or make a block unmovable. You can restart the level at any time without penalty. Later levels will have other objects and obstacles to contend with that can help you or hinder you depending on how you use them. Have fun and good luck playing Radioactive Jack!