Uploaded November 2023 | Updated September 2026, 9 hours ago
Not the actual level more like a tech demo. With SMB3 Workshop you are very limited for what objects to modify graphics and palettes.
DO NOT ASK ME FOR DOWNLOAD LINKS! My custom levels aren't distributed to the public other than our private Facebook group page.
My Facebook page
facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
facebook.com/groups/121487385079292
Not the actual level more like a tech demo. With SMB3 Workshop you are very limited for what objects to modify graphics and palettes.
DO NOT ASK ME FOR DOWNLOAD LINKS! My custom levels aren't distributed to the public other than our private Facebook group page.
My Facebook page
facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
facebook.com/groups/121487385079292




![SMB3 for Super Mario All-Stars Custom Level #566 - World 6 Fortress [SMB3 Mix]
Level by Southbird
A conversion of SMB3 Mix from the NES version by Southbird. SMB2USA boss music is omitted and you fight Boom-Boom in the end.
My Facebook page
http://facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
https://www.facebook.com/groups/121487385079292/ SMB3 for Super Mario All-Stars Custom Level #566 - World 6 Fortress [SMB3 Mix]](https://i.ytimg.com/vi/eJCYYMI6LzM/mqdefault.jpg)





