Free xkobo software for linux

Kobo Deluxe is a port of XKobo to SDL, with considerable enhancements.
Kobo Deluxe is a port of XKobo to SDL. XKobo itself is a descendant of Namcos old Bosconian, which can be seen as part of the Galaxian/Galaga family of space shooters.
In both XKobo and Kobo Deluxe, you fly a ship around in 2D space, destroying other ships, dodging bullets, and destroying massive space platforms by shooting their cores.
There are literally hundreds of levels, and each level is different every time you play--the platforms are randomly generated. Kobo Deluxe adds sound, better graphics, and much more to the original game.
Main features:
- Fast paced retro arcade style game play
- Smooth, high speed 8-way scrolling
- Very simple controls - the game is about speed and strategy
- 17 different enemies; fighters, kamikaze attackers, proxy bombs and more
- 50 maps, each with its own feel and strategies to figure out
- Maps are built as you enter them - each game is unique!
- Beat the 50 maps - and get a new wave of even more aggressive enemies
- Music and sound effects with real time reverberation
- Structured audio technology - hi-fi sound in a tiny download
- OpenGL support for extremely fast and smooth animation
- High resolution support up to 2048x1536 - five types of scaling
- Supports any display color depth - dithering for 15 and 16 bpp
- Supports control by keyboard, mouse or joystick
- Runs on pretty much any hardware and operating system
- All code and data is Free! Source code available. (GPL or LGPL)