How do I use a .bsg file?

TURTLE VS TANK!

uploaded by new 11 months ago


IMPORTANT THE CUTE TURTLE DOESNOT BELONG TO ME
IT BELONGS TO Blitsplatapus,I just want to to get attention
by my favourite builders.CONTROLS:
t-f-g-h=tank movement
arrows=turtle movement
k=detonate turtle(overkill)
- =???????(overkill close range)
posted by new 11 months ago
sorry for bad photo just hard to use paint (windows)