You might be at the end of Eternal Sonata (aka Trusty Bell: Chopin’s Dream). Maybe you earned the 1,000 achievement points and unlocked everything. However, you’re playing the incomplete version of Eternal Sonata.
Next year Eternal Sonata arrives on the Playstation 3 with bonus content. Non playable characters Serenade and Prince Crescendo join the party and Tri-Crecendo is adding extra story sequences. Ouch for early adopters. This is the one time I’m hoping Namco Bandai is going to sell extra content for Xbox 360 owners. I would much rather buy a $10 Eternal Sonata “never ending dream” expansion pack than a whole new game.