Custom Robo Arena

Custom Robo Arena is a science fiction action role playing game for the Nintendo DS. In the game, the player participates in Custom Robo tournaments and tries to earn money to buy parts to use to improve their robo. The game is the first in the series that features two-player mode with the Nintendo Wi-Fi Connection including voice chat, Multi-Card play, and DS Download Play. Custom Robo Arena also uses a "Rivals" list. (wikipedia.org)