After achieving Legend 1 status, Cody is chosen to represent his island in a Robopon tournament on the mainland. However, Cody's trip doesn't go as planned. First, he forgets his Robopon at home, and then his ship gets lost in a storm. Eventually, Cody washes up on Majiko island, but discovers that the tournament has already started. This turns out to be the starting block for Cody's adventure through time.
Basically, this is Poke'mon with robots. The basic point of the game is to create Robopon, put them on teams, and battle. The easiest way to create a Robopon is the combine two sparks together, but as the game progresses, you'll find new ways to acquire Robopon. In addition to the main quest, the game is packed with enough side quests to keep people busy for a long time. These quests, which include things such as finding rare Robopons and special items, add a lot to the game.
Robopon 2 comes in two different flavors, Ring and Cross. While I was only able to play one version, each version contains the same story - only different Robopon. Those looking to collect everything will have to pick up both versions, or trade with friends.