I have beat the game and there are no cheats
yes there is
cheats
Custom Robo Arena happened in 2006.
Custom Robo Arena was created on 2006-10-19.
there arent any codes on custom robo arena
no
Since Custom Robo Arena can be played on DS you can most likely get an emulator for your PC and play it. Hope it helped :)
he is at the river
You cant.
It's Eddy
So far it is, no plans have been made for a new one.
In the Clubhouse, go to the back left crate, its there