Holy cow, Cave Story is as good as I remember, and probably even better now that it's on the Wii. The graphics and sound are perfectly updated. Just enough so that it looks good but still gives that faux-retro feel.

And the gameplay... oooohhh man... This seriously has some of the best gameplay I've ever had from a 2D platformer. Just beautiful. I love that right out of the gate you can do cool moves like jumping over enemies while firing down at them. Then things get out of control once you get the lvl3 machine gun. YES!

So, yeah, this is probably my favorite Wii game now. And it's just a WiiWare title! I'll have to check some more WiiWare games out. I really loved Lost Winds.