When you hit this block, it will end the level if you have 30 coins.(You can change the amount)
New features, sa-1 support.
I'll remove this for one reason: you made it SA-1 only instead of SA-1 hybrid. Use the defines that come with GPS in order to create SA-1 hybrid code. Example
LDA $0DBF|!addr ; instead of LDA $6DBF
Ah, and before I forget: you did only a SA-1 conversion, nothing more. Therefore, you cannot in good conscience add yourself as an author of a code you did not write or heavily contributed to. Another reason I'm removing this.