"Trying to unlock everything" is annoying. I do appreciate the unique characters though, but it's really easy to find one you like and kill everything fast or zoom straight through without killing. Halfling Ranger and Flies respectively for me.
It's a great concept but too hard in a frustrating way...hard to figure out...no problem...hard to line up exactly right, when you know what to do...uhh...>_>
lol...the "baddies" can't actually hurt you and die when you touch them? also if you hold the jump button down, you stay in a continuous "freefall"...lolsworthy, therefore 5/5. LOL