cool but redundant
Concept was cool, it took me a sec to realize you had to shoot the rockets.
Music: Brother, when your mission is to kill and endless horde of whatevers, its a good idea to have a good song, cuz the game gets annoying real fast. So maybe a nicer beat, more calm, mellow, and possibly choice?
Animation: this also gets boring and redudant. I only played for a few minutes, adn it just got repetitive. Maybe change the animation of some?
Game Play: I suggest you have the frogs come in waves. The way the game is now, you play at the climax from the get go, which can also get boring. Also, perhaps upgrade, bombs, defence mechanisms? Add something to make the game a little more interesting.
So maybe just put a little more into your next one, and hope it'll be more fun. But ok job on this one all in all.