Beat Plants vs. Zombies. The last boss is really nasty and took me several attempts (you're given random units on a conveyor belt, so, some luck is involved). I'm working on the second, harder adventure now. Saving up and buying crap in the shop, the zen garden, and mini games/variations (the one where the zombies have plant heads and shoot back was particularly challenging to adapt to at first, but, walnut delaying tactics saved the day) will keep me busy. Outstanding game, I give it 10/10 lawnmowers!