There's a lovely little rhythm to the way everything moves. Hit an enemy, spring off a wall, land running, and suddenly the next stretch of the level is already behind you. The combat can get pretty hectic, but it never feels like you're just hammering buttons. Even the quieter story moments have their own charm, especially with the characters actually speaking.
The full game is already unlocked in this version, so there's no need to worry about being stuck with a limited demo. It's nice having the complete adventure available, particularly when the music and movement keep tempting you back for another round.