Great Stuff
As a fan of many of the "Worms" games, I found this to be quite amusing and easy to occupy my time with. Quite fun indeed.
HOWEVER, a few suggestions:
1) Difficulty levels... at least two modes of "easy" and "hard" as it was quite apparent the CPU/AI NEVER misses (so pretty much if you don't have continuous hits from the start it's an AutoLose. :/
2) Sound... at least some form of bgmusic or sound fx... one or the other, both preferably.
Those two aside.... great stuff. Keep up the good work! Looking forward to future submissions.