How do I use a .bsg file?

Controllable rolling sphere

uploaded by allias 4 years ago

ARROW keys to control
posted by MasterBoxBuilder 4 years ago
Really Cool
posted by MGSO 3 years ago
nice ive been trying to make this for awhile

posted by thegeneralofbananas 3 years ago
yeah this thing is awesome it should have more likes.
posted by replikant 3 years ago
how did you make the ball/sphere?