There shouldn't be so much unlockable content in multiplayer/party games.
The worst offender has to be Warioware Smooth Moves... if you rent it, buy it for a party, or bring it to a friend's house, you soon discover that you can't even play multiplayer at all until you unlock it!
It's one thing to unlock additional characters, or trophies, or difficulty levels... but to have to unlock multiplayer? What's that about?















