tatan 1.0.dfsg1-8build3 (armhf binary) in ubuntu focal

 Tatan is a shooter game with simplified controls: use the mouse to aim and
 shoot, and the space bar to toggle your position. You have to collect the
 yellow stars (or shoot the white ones circumscribed in spheres) for
 power-ups.
 .
 The game is played in some sort of quantum universe, and you are either
 positioned on the left or the right.