Once you've completed the game 100% and acquired everything thrice, you can do a speedrun, believe me. ^^;
EDIT: Well, I've outrun myself,
Speedrun: 1:35A complete speedrun with nothing but all forms.
I died only once until I came to the body, died twice while I just got a spirit, seeing I was in fish form...
And once again when I became poisoned and had no more food.
And two times in the big enemy area, psh.. Had to swim from the lost city twice. ~_~
Either way, Aquaria is pretty damn easy (and boring) if you swim by everything, I even got past the horde of big nautilus unharmed (near the end of the big enemy area before the creator). I just swam past!
And no, I haven't defeated the creator, I did that more than enough already. ^^