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Players move through side-scrolling stages, jumping over pits, stomping enemies, collecting coins, and using power-ups such as mushrooms, fire flowers, and stars. Progress is stage-based, with worlds connected by a classic Mario-style map flow. Levels include overworld, underwater, and castle sections, each with different enemy patterns and terrain hazards. Success depends on timing jumps, managing power-up state, and learning the layouts of hidden blocks and alternate routes.

Mario

The main playable character, used to clear stages through jumping and power-up use.

Luigi

A series staple, though not a major focus of this hack’s content.

Take each stage slowly and learn enemy timing before rushing forward. Keep a power-up whenever possible so a mistake does not immediately cost a life. In underwater areas, watch enemy movement cycles and plan swimming routes carefully. In castle stages, observe moving platforms, lava gaps, and trap patterns before committing to a jump. Hidden blocks and secret paths can often provide extra safety or shortcuts.

No cheats or unlockables available

Tips and tricks

This hack rewards careful movement more than speedrunning on a first playthrough.

Tips and tricks

Holding a power-up into later stages greatly improves survivability.

Tips and tricks

Check suspicious walls and blocks for hidden items and shortcuts.

User Reviews

The stage design feels coherent and polished for a fan-made Mario hack.

User Reviews

Its more traditional style makes it appealing to NES platforming fans.

User Reviews

Some changes reduce originality, but the overall playability is strong.

Comments

5/5
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About Super Mario Bros. 4: The Undiscovered Zones V2

Super Mario Bros. 4: The Undiscovered Zones V2 is a 2017 Nintendo Entertainment System platformer, action, fan hack game, developed by Szemigi and published by ROM hack. This game is a fan-made ROM hack by Szemigi based on the NES-era Super Mario formula. It focuses on side-scrolling platform action, with redesigned stages, altered world themes, and a structure that stays close to the feel of Super Mario Bros. and Super Mario Bros.: The Lost Levels. It is often noted for its solid level construction and for leaning toward a… You can play Super Mario Bros. 4: The Undiscovered Zones V2 instantly in your browser at https://classicemu.com — no downloads or installation required, with cloud save support and mobile touch controls.

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Start Super Mario Bros. 4: The Undiscovered Zones V2 directly on this page with ClassicEmu. The emulator runs in your browser, so you can play online without installing a desktop emulator first.

Platform and emulator context

Super Mario Bros. 4: The Undiscovered Zones V2 is listed under Nintendo Entertainment System so players can find it alongside games from the same console, handheld, or arcade system.

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