Once you get the the redundant "time tests", I figger that's when you've won.
The egg pieces get up to $10k each, IIRC. And once you've won that and have 10 pets, you've defeated it.
The downloadable version is in the works and that should be a lot more fun!! I heard they've created an angelfish that brings your dead fish back to life and a shark that eats aliens, but he also eats your fish.
Okay, well that's all I can do tonite. I'll never get to the gym in the a.m. if I don't get to sleep.
I got to level five and it tricked me with two aliens...