Use the arrow keys to move your ship and the space bar to shoot.
About Blastar
Blastar was a game written by Elon Musk in 1984 (at the age of 12).
The source code was published in a magazine and he received $500 for it.
Ashlee Vance's Elon Musk:
Tesla, SpaceX and the Quest for a Fantastic Future includes a reproduction
of the page from the publication where it appeared. This version is based on that listing.
Elon has since moved beyond 8-bit spaceships.
"[It was] a trivial game... but better than Flappy Bird."
--Elon Musk (via WaitButWhy)