Only one which is actually the fourth installment of the series.
Custom Robo - Nintendo GameCube - happened in 2004.
Custom Robo - Nintendo GameCube - was created on 2004-03-04.
Mega Man series, Custom Robo, Machinarium, Shoot Many Robots
Custom Robo Arena happened in 2006.
Custom Robo GX happened in 2002.
get a bronze or silver trophy in all of the Z HQ battles. (I can't remember if it's bronze or silver, sorry!)
Custom Robo Arena was created on 2006-10-19.
Custom Robo GX was created on 2002-07-27.
there arent any codes on custom robo arena
So far it is, no plans have been made for a new one.
That robo is eddies (mistral) you get that robo by defeating hajime in the class room you obtain mistral after it
yes there is