Mission 10

Dusk Survival is a mini-game that serves as training for Roxas in Mission 10 in Kingdom Hearts 358/2 Days.

In this game, the Key of Destiny must survive the battle with multiple Nobodies in the Hall of Empty Melodies with no escape until time runs out. Once the clock is up, it's game-over and mission complete.

A good way to ensure success in this mission is by utilizing healing items, the Limit Break, and the Guard Ability. It should be noted that the number of Dusks defeated doesn't matter.

Trivia

 * The battle music for Dusk Survival is "Rowdy Rumble."