How do I use a .bsg file?

Guided Missile v.4 (Air to Air)(Air to Surface)

uploaded by UltimoOrc127 4 months ago


controls:
launch:1,2
up arrow
down arrow
left arrow
right arrow
---v.1 to v.3 deleted---
WATCH OUT FOR ver.5
posted by quecojones 1 month ago
it's amazing but if I had four it would be second to none