So I have a game and right now it’s 128KB, but I need it to be 256KB because it won’t work. I forgot how to make a file bigger and I can’t find out anywhere because I searched the forums and no answer appeared. So, how do I make the change to make it compile a 256KB game instead of a 128KB one?

The easiest way is to just duplicate the file back-to-back. That is, the data from your 128k file will appear twice in the 256k file.

But I need the extra space for a 256KB file. It outgrew the 128KB limit.

You don’t have to worry about file sizes, the compiler will take care of choosing the right size.