checked-no =>Challenge Menu: Challenges are unlocked as you progress through the standard game. Each challenge has level 1, 2, 3, and Max (Survival Mode). Additional levels are unlocked as you successfully complete each prior level. * Banana Grab, Rolling Panic, Speed Climb: All of these are unlocked once you finish stage 1-1. * Throw 'n' Crush: Complete stage 2-3. * Orange Picker: Complete stage 3-4. * Booster Battle: Complete stage 5-1. =>Cheat Menu: Collect five DK coins to unlock the Cheat Menu, where you can purchase cheat options using your DK coins. * 20 Lives: Toggle between 5 or 20 lives for 5 DK coins. * Increase Speed of Diddy's Hammer: 10 DK coins. * More Powerful Wing: 15 DK coins. * More Powerful Torch: 20 DK coins. * 6 Crystal Stars: Toggle between 3 or 6 crystals for 25 DK Coins. =>Extra Stages: Once you beat the game, you'll unlock the Extra Stages option on the main menu. For every 10 banana coins you collect, you'll unlock one stage, up to Extra Stage 10 (at 100 coins). Extra Stage 11 is unlocked once you collect a total of 105 coins. =>Hidden Levels: Collecting all the oil barrels in a world unlocks that world's hidden level; just press X and Funky will fly you there. Little High High Island has two barrels, Little Sun Sun Island has four, and the others all have five barrels.