Homebrew developer danzel dropped by our PSP Development Forums to release Defence Station Portable, a fully customizable Tower Defense game for the Sony PlayStation portable handheld system.

Defence Station Portable, or DSP, can also run on both Windows and Linux. The Windows and Linux versions can also be used to create new levels for the game. If you're interested in making your own levels, read the leveldev.doc file included in the downloads below.

Danzel also said that yes, the points counter is indeed broken. This will be fixed in an upcoming version along with the addition of different difficulty levels. Check the readme file included in the downloads for more information.