Custom Robo Cheats

Completion bonuses:
To unlock Arcade Mode, First Person View, Parts Index, and The Grand Battle in Single, and Versus Mode CPUs, you must complete "A New Journey" mode in single player.

Link bonuses:
Use a Game Boy Advance link cable to connect to Custom Robo GX to unlock the Dark Core stage and new Robo parts in the Japanese version of the games.
User Cheat by Rice80

First person view:
How to beat Rahu 3 at the end of the game.

WAY TO BEAT RAHU3:
you must use these parts

    :BODY=CRIMINAL
    :GUN=DRAGON
    :BOMB=DOESN\'T MATTER SINCE YOU WON\'T BE USING IT
    :POD=DOLPHIN
    :FEET=BOOSTER
When you start you must try to get as far away from Rahu as possible. Then hide behind a pillar and keep firing your dragon gun.IF he comes after you hide behind a different
pillar once he gets close to you. do this until he starts attacking your teammates. Let Marcia and Harry do the rest. Soon enough you will beat Rahu 3.You will get the drill gun after you beat him.
User Cheat by nnguyen_95120

Alternate stage:
Pick versus mode, then highlight Basic Arena or No Man's Land and press Z to change their appearance.

New stage:
Pick versus mode then choose three matches. Finish the three matches and a new stage will be unlocked.

Dark Star versus mode stage:
Play versus mode 50 times with any one Robo. For example, play vs. mode 50 times with Ray01.

Versus battle CPUs:
Finish the game in story mode.

X Laser:
To find the X Laser (illegal part), in a Grand Battle mode, go to Bogey's Café. Walk behind the counter and select the shelf. You will now have an illegal part.

Chickenheart:
In the Z Boss battle, look on the north side of the west pillar.
User Cheat by Morgan

Crystal Strike:
Defeat the fourth CPU in in the Test Center, then keep talking to it until you get the Crystal Strike gun.

Ray Legend Robo:
Win all the cups in the Z Headquarters tournaments with a gold trophy, then talk to Oboro.

Ray Warrior:
Win all the cups in the Amusement Park tournaments with a gold trophy, then talk to the policeman at the front gate.

Rahu parts:
To get the first set of parts, go to the Z Headquarters, talk to Oboro, and select Eliza's Mansion. Go in between the glass and the wall, go all the way to the left, then up, then right. You will be in the glass case. Press A to find Rahu 1's parts and the Rahu 1 chip.

Wave Laser:
Go to the Lab Handicap battle, then press A against the books. You will get the Wave Laser gun illegal part.

X Laser:
When you first enter Bogey's, look behind the counter facing the wall.