Use WASD or arrows to move around. It looks so easy right? But, you have to go on each of the grey tiles so you can pass the last level. (Go on the green one after you stepped on all the grey ones) All of the levels are possible! (just saying because people where complaining).. In misc, you can change your character. (i added a doge)
Credit to KingOfAwesome! I added a couple characters in misk.