Space is Key is one of the hardest games you can play on Cool Math Games! Your objective is to navigate a little square and reach the star targets situated behind various obstacles. You have to avoid hitting the block obstacles by jumping over them or by passing under them. The shapes of all obstacles are a rectangle. Use your space bar to jump over them. Try to go through all 15 tricky and challenging levels. In later levels, your speed will be doubled and so will be the difficulty. You can see the number of your deaths and your current level on top of the screen. This game is all about reflexes. You need great reflex skills to be able to start your jump in exactly the right time, otherwise you will be crushed! Can you accomplish each level of this super hard obstacle course? Can you become the master of Space is Key?