Custom Robo Arena Cheats

Beat the Great Robo Cup. Then, go to Team NO.1 Clubhouse, and talk to the boxes above the stairs. Beat the kid thats hiding inside the box.

Unlockable: Hadoron

You must defeat all 4 Greyham Boss data and Hadoron data, and you will recieve Hadoron and his parts.

Unlockable: Carat

Unlockable: Minstrel

Unlockable: Reacquire the Ray MkII

To reacquire the Ray MkII after losing it, defeat the Robo Cup and then go speak to your character’s father at Neobrain, Inc. Upon talking to him, he will hand back the Ray MkII.

Unlockable: Doppelganger Goods

After successfully completing twelve grudge matches, a doppelganger of your character will appear in front of your team's clubhouse, looking almost exactly like your main character. You'll be forced to fight him. Defeat him to accomplish the following.

Defeating him the first time will net you the Majel Robo, the Indigo Gun, Indigo Bomb, Indigo Pod, and Indigo Legs, as well as a pass that will allow you to access the underground. After defeating the Greybaum enemies with the boss data, you can again fight the doppelganger. This time, he will give you the Ray II Dark Robo, Ripple Laser Gun, Deva Bomb, Cerberus Pod, and Phantom Legs.

Unlockable: The Underground

To unlock a secret area of the game called The Underground, you must first win the Robo Cub and then win twelve subsequent Grudge Matches. You must then head to your school and fight your doppelganger outside. This battle must be won.

From there, you will get an item that grants you access to The Underground, but you must first find the entrance to the Underground. The entrance is located in the town over from your hometown (to the left). Talk to the man at the southwest section of the town, and he'll grant you access.

Unlockable: AIRS

To unlock AIRS, beat Stark two times during the grudge matches. First, he uses his regular robo and then he uses AIRS. You can find AIRS's parts in the Underground Shop.

Unlockable: Dioramas

Unlockable: Mistral, Ray and Sagittarius Gun

After beating all grudge matches, go to Team Numero's club house. You will see Eddy standing next to the Holiseum. Fight him, win, and Liv will come in. After you defeat Liv you will get Mistral (Robo), Ray (Robo) and the Sagittarius Gun(Gun).

Unlockable: Grudge Match Fighters

Unlock the following fighters for the Grudge Match by performing the actions below:

Marv - Beat level 10 in the arcade (just the robo)
Marv's parrot - Get 7 gold trophies in the arcade
Kindaj* - Get10 illegal parts
Sling* - Get 15 illegal parts
Cleaver* - Get 20 illegal parts
Sythe* - Use 20 illegal parts
Hardoron* - Beat the four Greybaum boss data
Yourself(first time) - Beat 10-13 grudge matches
Yourself(second time) - Beat Hadron
Stark - Get Marquesse rank
Eddy - Beat all other grudge matches (except for Liv)
Liv - Beat Eddy

Unlockable: Special Robos

Beat the Robo Cup and perform the actions below to unlock the following robots:

AIRS - Defeat all the characters at the grudge match, go talk to Stark then beat him
Carat - Complete all Limited Robo missions and beat Angelica
Chick - In the clubhouse, upstairs, beat the boy hiding inside the box -- you must have a Max Combo of over 380 damage
Hadron - Defeat the Underground Greybums bosses, and you will receive Hadron data and parts
Illegal robos - Talk to the Clerk in the Underground
Majel - Beat 12 characters in Grudge Match, go in front of the clubhouse and fight your shadow
Mistral - During the final Grudge Match, go to your clubhouse then beat Eddy
Ray - Beat Eddy and Liv in the clubhouse
Ray 01 - Talk to the Clerk in the Underground
Ray II Dark - Beat your evil shadow
Ray MK II - In NeoBrain , talk to your father
Ray Sky - Talk to the Clerk in the Underground
X-Ray - Talk to Kris at the Police Station

Hint: The Illegal Parts Shop

There are so-called illegal parts that can be used in the game. In order to gain access to these parts, you have to have received the Majel Set, the Dark Commander Mark, and you must have beaten your doppelganger in battle. Once that’s all done, you’ll be able to access the Underground to purchase your illegal parts. To get to the proper area of the Underground, head forward from the entrance and enter the door. Now, head to the right and go straight again. You’ll come across the illegal parts shop. Costs are as follows:

Bombs - $200
Guns - $300
Holoseums - $200
Legs - $200
Pods - $200
Robos* - $500

* - Excludes the Ray 01 and Ray Sky types.

Printable Custom Robo Arena Cheats

Nintendo DS - Custom Robo Arena Cheats

Unlockable: Hiykko Robo