So I have been working on GoSub for the Atari 7800 the past few hours. I learned I have room for 25 levels. After every five levels there will be a boss stage. I thought I had more room than I originally did, but found out that the bigger the pictures are, the more room they take up, which is logical, but even in the mainspace and DMA holes they take up space there too, which I am wondering why since the pictures all have their own area to be stored.