Oh right...this completely slipped my mind with all of the release talk, but Grimper and I discovered what could be a really fun little game the other day. We were riding the same rail, and Grimper wondered what would happen if were to shoot arrows at a moving minecart. I was happy to oblige, and as it turns out, hitting someone in a minecart with an arrow breaks the minecart, just like a sword would. That led me to the inevitable: Battlecarts! Set up a twisty closed loop of track, have two or three people ride on it at once, give them bows and arrows, and have at it. Last person still rolling wins!