Digimon World 4 cheats and cheat codes for Gamecube

Digi-volutions
Agumon: Guilmon reach level 16
Dorumon: Agumon reach level 16
Guilmon: Veemon reach level 16
Veemon: Dorumon reach level 16

Ultimate and Mega level digimon in Normal Mode
Clavisangemon: Complete Undead Yard with Veemon
Clavisangemon: Complete Item Road with Dorumon
Herculeskabuterimon: Complete Undead Yard with Guilmon
Herculeskabuterimon: Complete Item Road with Agumon
Wargreymon: Complete Undead Yard with Agumon
Wargreymon: Complete Item Road with Guilmon
Weregarurumon: Complete Undead Yard with Dorumon
Weregarurumon: Complete Item Road with Veemon
or
Clavisangemon: Complete the Undead Yard quest with Veemon
Herculeskabuterimon: Complete the Undead Yard quest with Guilmon
Wargreymon: Complete the Undead Yard quest with Agumon
Weregarurumon: Complete the Undead Yard quest with Dorumon

Black War Greymon X:
Clear the "Wormhole" dungeon in Hard Mode.

Unlock 4th MP Move
Improve Your Blast Technique to 1000.

Unlock Hard Mode
Complete the game in normal mode once.

Unlock Imperial dramon Fighter Mode
Finish the final side-quest, Worm Hole Dungeon, in very hard mode
with any of the Digimon.

Easy experience:
Play in single player mode. Replay the tutorial at least 15 times after go
to Death Valley. When you reach to Vally, follow the path and find some
Goburimon. Do not go across the bridge. Follow the path up and defeat
the Goburimon. You will gain 10 experience points each.
Break, then get the Gate Chip, use it, and repeat.

Get unlimited bits and items:
This trick requires your main Digimon as player one and any Digimon as player
two. Give all your Bits to player two. Then, save player two at the Save Keeper.
Next, have player two give all Bits to player one. After that, have player two quit
the game at the Save Keeper, but this time without saving. Then, go to Call
Keeper and have player two join in again with the same Digimon. Repeat this from
the beginning until you have 9,999,999 bits, both in the bank and pocket. Note:
You can also use this trick to duplicate items. This is very useful if you want to
give some rare weapons and armor to a friend. Submitted by Mastahmon

Tipp:
While on the boat at numa numa river go to one of the corners charge your
weapon.Release at corner until you fall off the boat you should be able to walk
anyware .
You want but do not wander to far threw wall u might not find your way back.u
may need to repeat till u get it.It could take a while.