Custom Robo Arena 激闘!カスタムロボ, Gekitō! Kasutamu Robo, lit. "Rumble! Custom Robo"), is the 5th game in the popular Custom Robo series. New Features to this game is the ability to go over WiFi, as well as Multi card play, and DS Download play, and will also use the DS touch screen for unique activities such as cleaning your robot after battle, and to help construct more parts to it.
The game is developed by NOISE and published by Nintendo. The game is released in Japan in 2006 and in the west in 2007.