how to crack a rom?

Why do you want that?

ZanacX, do you mean you wish to look into the code to see how it's done?

Put the ROM in a vise and tighten until the case cracks open.

But uhm... at certain locations on the net, these game ROMs can already be downloaded, why bother cracking them again? Btw, have fun finding out which numbers are code and which are music, gfx, maps and sprites..

The term 'programming list' doesn't bode well here ^^

you are looking for a disasembler to convert binary to assembler code

a good one!