We have 2 cheats and tips on Nintendo DS. If you have any cheats or tips for Rosario to Vampire please send them in here. You can also ask your question on our Rosario to Vampire Questions & Answers page.
When you beat the game with the following characters winning the 'Miss Youkai Gakuen' contest the corresponding new character will become available
Unlock Kotori Ginarayu:
Beat the game with Moka, Kurumu, Yukari, or Mizore winning the contest.
Unlock Ruby Toujou:
Beat the game with Kotori winning the contest.
When you have beaten the game ALL the entries in the BGM menu and some of the Voices you hear in conversations will become unlocked.