346860 Posts in 14694 Topics by 24115 Members.Latest Member: ataletswuo
Hmm, the common belief is that, in the original Famicom version of Super Mario Bros. 2 (J), to get to World 9, you must simply abstain from using any warp zone up to beating World 8--effectively meaning you beat every level. In the All-Stars version, if you have World 9 already, and use a warp zone on a save and then save it, you will lose World 9. But in the original Famicom version, it seems that going into a warp zone won't necessarily make you forfeit World 9. In the original Famicom version of SMB2J, the criterion is not abstaining from the use of warp zones and just going into beat World 8, but rather that you must beat every castle from Worlds 1 through 8. When you beat a castle (or more precisely touch the axe and cause Koopa to fall into the lava pit) in a world, a bit is set on byte $07FA corresponding to the world you've beaten. Beating World 1 will set the lowest bit, while beating World 2 will set the next lowestt and so on. After the scene with the Princess at the end of World 8, the game performs a check of byte $07FA, seeing if it is #$FF or not (i.e. seeing that all the bits were set or not). If it is #$FF, then the game will proceed to load World 9, while if it is not, then it will proceed to reload the title screen. It seems that using a warp zone doesn't have an effect on byte $07FA, so if you warped forward and then warped back so you can still beat every castle, then theoretically it would seem that you could still get to World 9, in the original Famicom version of SMB2J.
I'm sure beneficii appreciates the credit you gave her.
