Uploaded July 2025 | Updated September 2026, 9 hours ago
Designed by E1S!
Using sky objects, this dark and grayish "fort stage" features basic fort enemies from roto discs to thwomps and even hot feet. Boss is Boom Boom.
My Facebook page
facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
facebook.com/groups/121487385079292
Designed by E1S!
Using sky objects, this dark and grayish "fort stage" features basic fort enemies from roto discs to thwomps and even hot feet. Boss is Boom Boom.
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]](https://i.ytimg.com/vi/eJCYYMI6LzM/mqdefault.jpg "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/")
