For the bad ending, get less than sixteen Usagi no Tegami; throw less than 49 enemies; and have a completion time more than three hours.

To get the normal ending, get less thatn sixteen Usagi no Tegami and throw more than 49 enemies. Alternately, collect at least sixteen Usagi no Tegami and throw less than 49 enemies.

To get the good ending, get over fifteen Usagi no Tegami and throw more than 50 enemies.