The killer app for the Japanese Xbox 360 launch has been delayed and will now miss the December 10 launch.

According to the Japanese website Game Watch the Japanese release of Dead or Alive 4 has been delayed until December 17. This means the game now misses the December 10 Xbox 360 launch and leaves the launch line-up looking rather weak. The six games still on target for the Japanese launch are Every Party, FIFA 06: Road to FIFA World Cup, Need for Speed Most Wanted, Perfect Dark Zero, Ridge Racer 6, and Tetris: The Grandmaster Ace.

This comes after recent news of delays to both Enchant Arm, a title originally planned for launch, and N3: Ninety Nine Nights. With such a poor Xbox uptake in Japan, Microsoft is hoping for much more with the Xbox 360, but given the launch line-up, things might not go to plan.