It's a very simple and straightforward game: giant alien bugs (literally, they look like giant ants) are invading the planet. Go shoot them with your rocket launcher.
It's simple, but it's really well-done. The graphics are pretty. There are several different difficulties, and it's genuinely easy on easy mode, and genuinely hard on the harder modes. There are lots of different weapons to unlock, but you can only carry two at a time. There are vehicles and other complications but (so far), they're totally optional. The two-player co-op mode is great. You don't get penalized for failure. And, most importantly, there are lots and lots of things to blow up.
I guess I'm impressed because it shows that a game doesn't have to be complicated, or deep, or fancy, or stylish, or radically innovative to be good. It's enough just to take a basic idea and execute it really well. Giant bugs + pretty explosions = fun.
Catchup: Drove the kraken off Saturday evening, played bocce at the farewell party for Dan & Krista (who are moving to Boston) on Sunday afternoon, watched Bedazzled (the original) on Sunday evening and was entertained, plus finished The Amazing Maurice and His Educated Rodents and read The Wee Free Men, both by Terry Pratchett, this weekend and enjoyed them both. Ordered new checks, paid bills, did laundry, fixed the stained shirt by bleaching out the bottom several inches, washed dishes, went grocery shopping, spent spare time thinking about D&D psionics stuff for my own entertainment. Tomorrow I shall attempt to understand the CF conventions for Lambert conformal projections and play Norm the Indefinite Elephant in the farewell run for Dan of Over The Edge at Keith's in the evening. And that's my life.