"Your job is to grab the sharpest object your money can buy and hurl it at the flies and mosquitoes who just won't leave Buddy alone."
It's actually ridiculously fun and pretty addicting. You can collect stars by killing the flying mosquitoes as they pass by in front of you. With these stars, you can buy new sharp objects, dress up Buddy, add more lives, and even change the look of the target he's on. Be careful though, if you do miss and hurt Buddy more times than the number of lives you have, it's game over.