Enjoyment: I didn't really understand what was going on.
Concept: I like the idea of a card game where you try to move frogs across a board.
Presentation: It's very visually noisy. So many different things are bouncing and flashing at such low resolution that it's a little overwhelming. The fact that the text moves offscreen so fast, and has a low-res font, made the mechanics really hard to grasp. That said, I did like the art. It's very cheerful.
Use of the Limitation: The fact that the board changes is interesting, but it didn't seem to affect gameplay. As far as I could tell, frogs were perfectly happy to enter blank tiles, or even walk off the edge of the board.
Overall, I really like the idea, but I found it very confusing in its current state. Hope you develop this further.