Like sokoban, but actually fun. This is the first kind of this game that I've played that has drawn me in for more than a couple minutes (and coincidentally the first I've played where you can PULL boxes as well as push, wonder if that has anything to do with it ;P) - I played through the whole thing. After the initial 15 or so seconds of confusion, I picked up the game quite nicely, which speaks to both its simplicity and its addictiveness. The "boom" that comes with every plant incinerated is very satisfying. Well done!