Specter boxing mini-game:
To unlock this mini-game collect 20 specter emblems.

Specter boxing extra characters and survival mode:
When you complete specter boxing extra characters become available.The extra characters include the boss monkey and specter.You will also unlock survival mode and you will be able to play as blue pipotron in this mode.

Unlockable Mini-Games:
There are certain mini-games that you can unlock by finding Specter Coins which are placed in a variety of places throughout the levels.

Snowkidz Racing - Find 10 Specter Coins
Specter Boxing - Find 20 Specter Coins
Jake Attacks - Find 30 Specter Coins
Ape Ping Pong - Find 40 Specter Coins

Extra characters in Ape Ping Pong:
Defeat Tournament mode and defeat Specter and Yellow Pipotron to be able to use Specter in Tournament or Training mode. (Note: Since specter uses all of the moves it isnt always best to use him because there's the off chance that he'll use a weak attack in battle)

Final Specter confrontation:
Capture all the monkeys in every single stage to unlock a final stage. There, you'll have to defeat Specter once more and actually capture him. The ending for the game will be then viewable.

Save the Use of a Life from a fall:
This works exactly like the Playstation version. During a Fall that will cost you a life, Press [Start] then [Square] then select yes. Of course this has to be done from a very high fall (like off of a cliff where you die) in order for you to be able to do it fast enough. but it will work for any fall if you are fast enough.
KEYWORD: FAST