Fork of threecreepio's SMB1 Bowser Practise ROM for SMB2J & ANNSMB
You can patch the NES/FDS files using a tool such as ROM Patcher JS by Marc Robledo.
Please change the file extension from FDS to NES after patching.
To find the RNG value for your 8-4 framerule, simply add 9 to the starting 8-4 framerule number (use 8 for very fast bar manip 8-4) and then enter the resulting number into the 8-4 Framerule input on 3.creep.io.
Example: 1220+9=1229. RNG for 1229-B = 6DCA
20E50128742162EE47561DB9E82B2836399C880C08927227B6FF67F42E759505D176CD924931BD14F30BDD3C556604D7EAA6D0F4864D5566E519B5D4Some dumps of Super Mario Bros. 2 (FDS) and All Night Nippon Super Mario Bros. may have a 16 byte header known as the fwNES header, please remove it before patching.