Hello Before you read any further, I'd like to state one thing. I am a noob at this and have no experience in programming or coding or anything like that for that matter. I understand basics of HEX and Decimals but that's it. With the recent of help, I now understand button triggers. So with that out of the way, I would like to know why some gateshark codes have these D code lines and why they don't work without it for some reason (usually crashes my game). I will BOLD them to indicate which code line I am talking about. Here we go. D1000000 00000000 355A120C 0000FFFF D1000000 10000000 00725AF0 00000063 D3000000 00000000 13955000 C8C80000 D2000000 00000000 4469001C 000003E7 D2000000 10000000 299A0FF0 FFFFFFFF Those are the D code lines I am trying to figure out. I've looked around and searched for it but still wound up with no answers. Either they are lost to time, I am not looking them up right, or it's just common knowledge to everyone who knows programming, whatever it is, I can't find any info on what they do. Also why do some have a different value like 10000000 instead of just all zeros 00000000. Any help would be appreciated. Thank you.