I'm making a game where you go to a 'shop' and buy upgrades. The problem is, i can't figure out how to change SPsize and SPspeed when you buy an item.

Use the command called SPSCALE. SPSCALE (sprite),(scale x),(scale y)

well if its simply upgrades, like if speed+5 is bought then speed=+5 just add the sprite you want with it.

oh yeah, in the code you have that lets the sprite walk around, there should be a code that shows how fast you want it to move, use whatever you named it instead of speed.

in the game there's the main screen where you move, and if you press a button it brings you to the 'shop'. I can't figure out how to put spscale and speed+5 into the shop.

what i'm doing for the code is IF B==Y THEN GOTO @SHOP @SHOP IF B==A&DOWN THEN SPSCALE #,#,# I put # because i can't remember the exact numbers, and for the speed IF B==UP&A THEN X=X+5 and so on

i'm new to SB, so it's still pretty complicated for me.