This game hooked me almost from the first moment I played it; I paid for it happily and don't regret it. The game play hits that sweet spot between simple (enought to avoid frustration) and challenging (enough to keep from being bored), and there's a lot of surprising inventiveness: missiles, some unique penalties, and a level that's a tribute to Our Favorite Fruit Company. Perhaps best of all, the game is moddable out the wazoo; start poking around the Resources folder and you can change practically everything. Nice job! (Oh yeah, other posters are right: the music sucks. There also needs to be an option to disable sound effects.)