Tutorial is all in the game. Just click on the level you want to play on the right, and either press space to back out or choose a difficulty. Don't worry, it's only slightly difficult (not true).
THE FULL GAME IS OUT NOW! With 8 bosses and a fully custom soundtrack! (even if the music isn't that good). There's a total of 7010 blocks used. All sound effects made in Jsfxr and all music uses BeepBox, made by me. This game is NOT mobile friendly. I loved working on this game, so I hope you love it as much as I do.