Found here (Jap site): http://game12.2ch.net/test/read.cgi/gameurawaza/1179399284/ The code is: 220D7397 00000001 I tested it on my R4. It enables the EBA button shown in the screenshots (on the "choose a difficulty" screen). It appears that only the 3d models during the songs have been replaced. The dancing animation, sound effects/voices, 2d sprites, etc are still Ouendan's. Just like in EBA, changing the difficulty will change the leader singer/cheerleader. So you'll be able to play as Agent Spin, Chieftain, and the Divas as well. The EBA also replaces both of the Ouendan squads. During the final level, the 2nd character (normally the leader of the blue squad) is replaced with the Cat. Saved replays will also save whichever squad you used. If you used EBA, they will be in the replay again when you play it from the options menu. I can't test if this unlocks the Cat too, as I have no access to multiplayer where I'm at. Here's a copy of my usercheat.dat: http://www.samutz.com/dumpster/other/usrch...eba_in_oto2.dat Edit: Added more details above and cleaned up my mess of a paragraph.