![SMB3 for Super Mario All-Stars Custom Level #601 - World 4 Quicksand [SMB3 The Rainbow Realms] @insectduel](https://i.ytimg.com/vi/3m61oGToJRI/maxresdefault.jpg)
Uploaded April 2026 | Updated September 2026, 6 hours ago
Designed by Bluecrush.
Hills graphics mixed with Airship.
My Facebook page
facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
facebook.com/groups/121487385079292
Designed by Bluecrush.
Hills graphics mixed with Airship.
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 #601 - World 4 Quicksand [SMB3 The Rainbow Realms]](https://i.ytimg.com/vi/3m61oGToJRI/mqdefault.jpg "SMB3 for Super Mario All-Stars Custom Level #601 - World 4 Quicksand [SMB3 The Rainbow Realms]
Designed by Bluecrush.
Hills graphics mixed with Airship.
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 #548 - Mount Yume [山夢]](https://i.ytimg.com/vi/7ThvKQqyrG0/mqdefault.jpg "SMB3 for Super Mario All-Stars Custom Level #548 - Mount Yume [山夢]
Graphic & Object Set: Underground (Byte 04)
An underwater SMB1-Style level is inspired by Minus World and the glitch level layouts.
My Facebook page
http://facebook.com/insectduel
For SMB3 ROM-Hackers, please join my Facebook group page
https://www.facebook.com/groups/121487385079292/")
