For me, it's loading the SMB1 maps (or is it SMBLL?). I only selected the games SMB2U, SMB3, and SMW.
I also can't start the game in 1P mode.
I'm using the bsnes v115 emulator I used the online tool.
Dropped my potatoes at the forest, and now I can't make a recipe because I can't find it anywhere!
I'm so glad it worked! Have fun! :)
There is this guide on the steam forums where it teaches how to transfer the save file from PC to Android.
It says the file is located at /Android/data/com.poncle.vampiresurvivors/files
If I were you, I would backup the save file, erase all data from VS then restore the save file.