how to create my own NES codes ??

[seznam88]

please help me how to create my own Nes codes ???

[mgos307]

First off Download FCEUX 2.2.1

Then:
1) Open Rom for ex. Duck Hunt
2) Open Debbuger (Debug -> Debbuger)
3) In the breakpoints click add button
4) The breakpoint add window will pop up. Just write the NES address to the 1st field (1 address for ex. shots 00BA) click write and finally click add.
5) In Game A,B or C shoot.
6) The game will be paused and it will look something like this:

7) Click MMB (Middle Mouse Button) to that address shown ( > <- that arrow shows right address!)
8) The game genie decoder/encoder will pop up.
In the value field fill with value for ex. C4 or C5 (If you don't like reset the emulator, then remove value from the field Compare!)
9) Finally click Add To Cheat List.

Done!