Super Mario Bros.: Starlight Mario: Underworld 
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Super Mario Bros.: Starlight Mario: Underworld is a fan-created ROM hack for the Nintendo Entertainment System. This sequel features 12 new levels across three worlds, complete with custom music and animations. Players control Mario as he navigates a dark realm, tasked with retrieving the skeleton key to escape. The game includes unique level themes such as Battlefield of Bones and Forbidden Factory.
Time to Beat
Main Story 1h 41m
Main + Extras 2h 0m
ttb_all 1h 56m
Speedrun Avg 0h 8m
Speedrun Full 0h 24m
Release Date
Oct 28, 2022
2 years ago
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Popular Nintendo Entertainment System Games
NES Core Required
Super Mario Bros.: Starlight Mario: Underworld ROM
Download the Super Mario Bros.: Starlight Mario: Underworld ROM free and start playing in minutes on any top emulator—desktop, mobile, or web. Enjoy lightning-fast Super Mario Bros.: Starlight Mario: Underworld ROM downloads with full setup guides, cheats, and retro gaming tips so you can relive the classics today.