Short, sweet, and enjoyable.
In all honesty I thought at first "god....Im not gonna be doing this the whole game am I?" but amazingly enough its decent music, great graphics, and gameplay made it piece together so well.
Its like playing a small atari game, you got 4 levels through which you get some item, and the end of that level is a boss like creature, after beating said creature you instantly roll on to the next level in an unbroken sequence. Yep sounds like good material to me! :D
Overall awsome work with this and hope you guys do other games within the same format as this one, I had a good time with it :D.