This is the sickest version of pokemon I ever played...
Impressive work, the art style is good and well implemented through every interaction in the game. The only thing I would change is that I would put the stuff you can buy in front of the turtle, as with some mutations it gets too big and some stuff becomes difficult to click on.
It's a bit hard to understand what you're supposed to do to win the fights, as they get pretty intense quickly. Some in-game help on the characteristics would have been great (maybe it's there and I missed it).
The most impressive entry I've seen so far, that's for sure!