Board Thread:Questions and Answers/@comment-26453571-20151017215709/@comment-31046009-20170114205827

BGOFS is used to make a background move. In your case you want a background to scroll so you will need a variable for the x or y axis.

Example ''BGX = 0 IF BUTTON ==2 THEN BGX = BGX - 1 BGOFS 0,BGX,0,3x60''

BGOFS has 4 parts. The first tell what layer is being controlled(default is 0). The second is the x offset of the background and the third is the y offset. The final part is how quickly it moves to the point, the number will be in 1/10th of a second.