I'm new to hacking, so I will need step by step instructions to learn, I can do the very beginners stuff, using level editors, tile editors and other tools. I might have the terminology wrong but I'm looking to learn these things: Edit sprite tile mapping, using either the Disassembly or a hex editor. Could somebody show me how to do something simple, like change the goomba from using two tiles flipped to having 4 separate tiles? Background tile mapping to do something like put a sign post into a level like with Mario world. Assigning each tile a new pallet, I know and have changed the colours from the palettes already set to each tile using a hex editor, but I am looking to reassign a specific pallet to a tile. For example using Mario's palette for a piranha plant. A big thank you to anyone who takes the time to help me.