One thread for three section-based spaceshootys, that aren't really releated.

Warning Forever:

http://www18.big.or.jp/~hikoza/Prod/

Basic japanese-style shump where you fight gradually evolving bosses compromised of invidual sections.

Battleships Forever:

Official forums game post
Inspired by WF, it's a light strategy game where you command different ships that go pew.
Invidual sections break off. Has a nice ship editor too.

Captain Forever:

http://www.captainforever.com

Little flash game where you build your ship out off blocks that defeated enemies leave behind.
Site has two other games as well. They however, omg, cost money.

Love these. Bought one of them, play the other two regularly.

I played CF, and it was good, and WF is something that will challenge Touhou.

EDIT: BF is something my pc cannot handle.

BTW: Captain Impostor is better than Captain Forever, and the guy who made both games is making a sequel series (starting with episode "Captain Jameson") that looks kickass.

(it's under "Latest Video")