Defendguin is a clone of the Williams arcade classic "Defender." Instead of humanoids, you rescue penguinoids, and instead of alien UFOs abducting them, it's a certain monopolist we all know.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.
Joystick button and axis configuration was added
to the Options screen. A record of the high score
was added. The high score and the last
scores/levels are stored to disk. Image files were
converted to indexed format, saving 1MB of disk
space. Image files were corrected to remove white
artifacts seen on 24bpp and 16bpp displays. Some
BMP files that were not loadable in Gimp and other
viewers/editors have been fixed using Kuickshow.