Uploaded March 2026 | Updated September 2026, 9 hours ago
A Daylight Savings Time Spring Forward SMB3 Custom Level in World 8 Fortress Style in a mineshaft that uses gimmicks from Donkey Kong Country's Stop & Go Station by entering doors. Depending how you beat Boom-Boom, there's a good and bad endings.
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facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
facebook.com/groups/121487385079292
A Daylight Savings Time Spring Forward SMB3 Custom Level in World 8 Fortress Style in a mineshaft that uses gimmicks from Donkey Kong Country's Stop & Go Station by entering doors. Depending how you beat Boom-Boom, there's a good and bad endings.
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)