Time for another Super Mario Bros. article where we take a look at Super Mario Bros. 2 assets that remain inside of the menu programming of the one of the most videogame cartridges ubiquitous. Seriously, everybody and their dog owned a copy. I still do along with the manual. It never came with an official box as it was bundled with the Action Set NES.
For aesthetic mental reference: The controller (left), NES (middle), cartridge (right)
Surprisingly Nintendo for some reason used the Japanese true Super Mario Bros. 2 and character tilemapping to form the basis of the menu; graphic tileset and relative assets. I guess they were porting the Famicom Disk System file system when writing the menu because it may have been quicker or it was just on their workstation at the time? Maybe they did this on purpose just to see if someone would undoubtably notice over time? I really don't know and we will probably never quite know exactly why this even exists on the cartridge at all.
What you are about to see may burn your eyes because it may look like a garbled mess, but actually it is clearly (well maybe not so clearly.) the graphics from Super Mario Bros. 2. The palettes are based on which game is selected in the menu so it is the most visually pleasing to look at the Super Mario Bros highlighted section for better visual analysis.
Long and behold the detail!
Title screen graphics of Super Mario Bros 2 for reference.
Here is the original information I found.
Super Mario Bros. + Duck Hunt + World Class Track Meet (U) (PRG0) [!].nes
Replace Super Mario Bros tiles with unused Super Mario Bros. 2 Lost levels tiles
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Display unused Super Mario Bros. 2 Lost levels tiles at game select menu (I actually made this interesting discovery about a week ago. All of the CHR from the Lost Levels / Super Mario Bros. 2 is actually inside the Super Mario Bros. + Duck Hunt + World Class Track Meet game select bank! There are also unused tiles in Super Mario Bros. 2! https://twitter.com/nensondubois_/status/924508098907267072)
YPSTLGPA
Fixes Duck Hunt selection palette to match Super Mario Bros. / 2
TLXVYZPZ
YPUTAZTZ
YAUTPZIZ
Fixes World Class Track Meet selection palette to match Super Mario Bros. / 2
TLUTLZYL
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YAUTIZPZ
Replaces Duck Hunt 'upper-left brick' tile with unused Super Mario Bros. 2 tile. The table starts is located at 0x01E556-1E8CA beginning with Super Mario Bros and ending with World Class Track Meet.
E665:??:AD
Replaces Duck Hunt 'upper-left brick' tile with unused Super Mario Bros. 2 star tile (there are other unused tiles but this is just an example)
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