Bottles' Revenge Unlocked!
Lochlan writes "The Rare Witch Project has done it again, this time unlocking yet another "removed" feature within the Nintendo 64 game, Banjo-Tooie.
Bottles' Revenge, a feature which allows a second player to actively control enemies adds a whole new style of gameplay to the popular adventure game."
The Banjo Kazooie/Tooie series has a few other instances of where Rare decided to cancel the implementation of items and features but left them hidden in the game somewhere and accessible with Gameshark. Weaintcool.com has two articles about it.