This one includes the test level for you to try. It also has the white box where portraits will appear in the future game. Its linked to on the side. It should also run in other Linux environments. I Just tested it at school and it functions.
Also if you go into the levels folder, you may edit l1 and try changing the game. Be warned you can't go beyond 50.
The Controls are:
w - moves you up
a - moves you left
s - moves you down
d - moves you right
q - spins you left/counterclockwise
e - spins you right/clockwise
r - speeds you up
f - slows you down
space - fires! (honestly the funnest button)