#Unlock All Characters deactivate acter using it and save the game load that gamesave, go to the difficulty-modifier and press so often left, that the words easy, medium or hard are appearing. Then save again and all will be right.
80091286 0024
#Finish 1st
300AAD17 0000
300AAD18 0000
#Infinite Health
800235FE 3C00
#Don't Reset Laps After One Race play the first race and since the lap number remain you will finish next races after just a few seconds as a winner!
D00492AA 0064
80013248 3C00
D00492AA 0064
8001324C 3C00
D00492AA 0064
80013250 3C00
D00492AA 0064
80013254 3C00
#Jumps Finished
800AAFC6 7FFF
800AAFCA 7FFF
#All Items Found
800AAFF8 7FFF
#Max Points
800AAFD8 7FFF