Apparently Nintendo has a big glitch on their hands as it seems like japaneese gamers picking Peach as playable character in the "For the Glory" game mode gets instantly banned from all servers. Japanese gamers are now reporting that it is players utilising her down+B attack (a move that pulls a flower up from the ground) early in the first round makes the game think the player has illegally brought an equipped item into the match. Nintendo is of course working on resolving the issue.