SAN FRANCISCO (CBS SF) — You can play the video game SpaceX founder Elon Musk designed as a pre-teen in South Africa, thanks to a software engineer at Google.

Musk netted $500 from the sale of the code for Blastar to PC and Office Technology magazine, and Google software engineer Tomas Lloret Llinares took the code, and rebuilt the game to work in HTML5, CNET reported.

Blastar is sort of a rudimentary mix of Space Invaders and Asteroid, with the objective being to destroy the alien space ship carrying bombs and lasers.