"You control the robotic fighters with your mouse and repel wave
after wave of different kinds of enemy ships. Launch Chromium
B.S.U. from the Applications / Games / Arcade menu and start a new
game. You will soon be sending volleys of weapon fire toward the
enemy ships while protecting yourself with super shields, waiting
for powerups to get closer or dodging fire from the larger enemy
ships at the end of each level."
"The chromium package is in Debian since lenny and Ubuntu since
dapper, but it has been recently renamed to chromium-bsu. Chromium
B.S.U. is an old favourite of the Linux gaming community that has
been neglected until recently. The project is still looking for
developers, especially to help move it off obsolete libs like
libglpng and fix the rest of the bugs."