Custom Robo Arena

Beat Hajime in your classroom after he brings Saki to school.

Purchaseable in the Underground for Robos: 50000 credits, Guns: 50000 credits, and the rest of the parts 20000 credits.

Defeat Eddy and Liv will appear at your clubhouse. Defeat her.

Win the Great Robo Cup. Then, go talk to your father at his lab.

At the end of the game, after purchasing the Pipit Robo, the Jameson Robo, all Amun parts, equip the Amun parts to Jameson, then Pipit, then Jameson again. The Amun gun and Amun bomb parts will have shrunk to the size a normal gun would be, instead of giant. They will look superdeformed on the Jameson robo.

After beating the Robo Cup, talk to the scientist facing the glass in one of the laboratories on the upper floor of NeoBrain. Beat him, purchase stage.

Beat a dozen grudge matches, then beat your shadow self. Once you beat him, talk to the man in SW bayside to open the secret entrance.