They explode if you hit them with an exploding mushroom.
Update I: Items are ready.
Check the first post.
Update II: Damn that stupid TI-OS! It died and caused a RAM clear at school today. I was using the SirCmpwn Sprite Editor and almost
had a demo of a tilemap ready, but all my data got deleted. However, I don't have school tomorrow, so I will have one then. Unless the TI-OS dies again. . . *c.sprinkle mutters a long list of expletives.