The game has 2 game modes. First one is some kind of story mode. You are to upgrade your skills and get achievements.
Another mode is locked until you get a certain achievement. After that you can play a really bright and colorful game. This time your goal is to run as far as possible.
As Always, Good Luck and Have Fun.
How to Play:
W, up arrow or space to jump.
P to pause/unpause the game.