Banjo-Kazooie Unlockables

Stop n' Swop
You can receive these secret items from entering codes in the Treasure Trove Cove Sandcastle. However these items cannot do anything because Nintendo removed the Hot-swapping mode for the Nintendo 64.
UnlockableHow to unlock
Cyan Mystery EggInput "CHEAT DONT YOU GO AND TELL HER ABOUT THE SECRET IN HER CELLAR" In the "1881" barrel crossed with 2 metal bars in the cellar of Mad Monster Mansion.
Pink Mystery EggInput "CHEAT OUT OF THE SEA IT RISES TO REVEAL MORE SECRET PRIZES" At Sharkbait Island in Treasure Trove Cove. (The small island).
Blue Mystery EggInput "CHEAT A DESERT DOOR OPENS WIDE ANCIENT SECRETS WAIT INSIDE" In Gobi's Valley, behind an unopenable door which Gobi sits by before leaving the desert.
Green Mystery EggInput "CHEAT AMIDST THE HAUNTED GLOOM A SECRET IN THE BATHROOM" In Mad Monster Mansion on top of Loggo.
Red Mystery EggInput "CHEAT THIS SECRET YOULL BE GRABBIN IN THE CAPTAINS CABIN" In the captain's quarters in Rusty Bucket Bay.
Yellow Mystery EggInput "CHEAT NOW BANJO WILL BE ABLE TO SEE IT ON NABNUTS TABLE" In Click Clock Wood in Nabnut's house in the winter season.
Ice KeyInput "CHEAT NOW YOU CAN SEE A NICE ICE KEY WHICH YOU CAN HAVE FOR FREE" In Wozza's cave, in a small alcove.