I had a lot of fun, killed 50 something frogs before it got too manic. If i had any feedback i would say add some light music in the background and maybe increase the radius in which you can stomp on frogs. I found that it was quite pixel perfect sometimes which made the game more challenging but also frustrating. Also a little unsure on the relevance to the theme but that might just be me being silly.
Anyways good job on this game, the graphics are really cool and for an arcade game it was a lot of fun!