Not quite. Advance! Defend! Fight! is the offspring of a vertical scrolling shooter and a tower defense game.

In this downloadable PSP game you build ships and send them to battle. Each ship has its own set of weapons and weakness and it’s up to you to decide what’s effective. Scrap metal collected from shot down enemy fighters is used to build more ships. Up to 80 tiny ships can be sent out at one time. All of this is done while holding your PSP vertically. Rize made one of the few, but not the first, vertically oriented PSP games.

Advance! Defend! Fight! has two modes: arcade and war room. You start in arcade mode working through practice, easy, normal, hard, and very hard difficult levels unlocking more waves with each play.

Rize’s PSP game is due in Japan next month and it will only cost 500 yen ($5.50). What else has Rize made? Virtua Cop Re-Birth, portions of 3D Dot Game Heroes, and uhh… My Ballet Studio.

http://www.siliconera.com/2010/03/04...ooter-for-psp/