I just bought the full version on Monday... and I'm addicted. How addicted? I played through the whole game, managed to figure out that with the final boss using the freezing mushroom makes him stay put so your 'pults can hit him... and I've been playing through the unlockable content.

So far my favorite mini-game (once I bought the additional plants Ironspike and Cattails from Crazy Dave) was Bobsled. Though, a close second was Be-ghouled.

I think my favorite plants are the dual-headed pea shooters, the squash, and the corn con catapult (The butter lobbing!)