Space key to try again once you die, or press the green flag to restart back to home screen. Also! Make sure to check out my latest games I've created like Rotation! (Personally my favorite game so far.)
Updates: Version 0.2: Made working levels from easy which is blue, all the way to hard aka red. Version: 0.3: Made a World Record Hall of Fame, only shown when you die. Version 0.4: Made a thumbnail home screen. Version 0.5: Coming soon.