Beat sweet difficulty adventure mode - Kabuto Beat hot difficulty adventure mode - Yoroi 5000 Taiko Counter - Classic Medley Rock ver 10000 Taiko Counter - Hyaka Ryouran 30000 Taiko Counter - Kare Kano Canon 50000 Taiko Counter - Dragon Spirits Medley 99999 Taiko Counter - Numjika Ac.10 Beat 30 easy songs - Abekobe mode (Don and Kat get swapped) Beat 30 normal songs - Doron mode (Only Don and Kat characters appear, no drum icons) Beat 30 hard songs - x4 mode Beat 35 hard songs - Oni difficulty Beat 30 oni songs - Kanpeki (Perfect) mode (One miss and you fail the song) The rank goes from Entry Kyu (??) to 2nd Kyu (??) First Dan (??) to 10th Dan (??) Meijin (??) which means expert Chojin (??) which means superhuman Tatsujin (??) which means master Dai-Meijin (???) which means big expert =P Dai-Chojin (???) which means big superhuman Dai-Tatsujin (???) which means big master Cho-Tatsujin (???) which means super-master Kyoku-Tatsujin (???) which means extreme-master Taiko God (???) That's pretty much it. Rank/Adventure mode unlockables are quite intuitive and mentioned http://gbatemp.net/index.php?showtopic=84317 here. Beating 35 hard songs and you'll receive a mail, but not unlock oni. You MUST read the mail in order to actually unlock it. Same goes to all other modes/songs/costumes.