Metroid II (GB) Walkthrough, Secrets & Cheat Codes

1Game Basics

2Core Gameplay

The joy of Metroid II is the 'aha' of a new power. On the GB the world is readable once you map it, and the difficulty is fair because every wall has a key you can eventually find. Metroid II respects exploration. The GB release is the one fans cite for atmosphere, tight combat and a finale that pays off the whole journey. Metroid II is a metroidvania: explore a connected world, earn abilities that unlock earlier areas, and backtrack with new purpose. The GB version is the definitive way to experience the map. The joy of Metroid II is the 'aha' of a new power. On the GB the world is readable once you map it, and the difficulty is fair because every wall has a key you can eventually find.

The single most important habit in Metroid II is consistency — the systems reward players who learn the core loop before chasing shortcuts, and almost every wall you hit is a sign to practice one mechanic, not to abandon the run.

Priority checklist (do these first):

• Spend currency on permanents before cosmetics.
• Save before boss gates; some are far from checkpoints.
• Sequence-break only after a clean normal clear.
• Explore every dead end; many hide the ability you need next.
• Practice the dash/double-jump in safe rooms first.

Common beginner mistake: Players in Metroid II skip dead ends; explore everything because many hide the ability you need next.

3Step-by-Step Walkthrough

Follow this order and you will clear Metroid II on GB without grinding for hours. Each step builds on the last, so do not skip ahead — the early habits make the late game trivial.

1. Spend currency on permanents before cosmetics.
2. Save before boss gates; some are far from checkpoints.
3. Sequence-break only after a clean normal clear.
4. Explore every dead end; many hide the ability you need next.
5. Practice the dash/double-jump in safe rooms first.
6. Upgrade health early; survivability beats damage.
7. Use the map to plan efficient backtracking routes.
8. Revisit early zones; new power reveals hidden paths.
9. Mark locked doors; return after the right upgrade.

Once the campaign is done, replay on a harder setting or chase 100% completion; the systems you learned on the first run make the second feel completely different, and most Metroid II players agree the post-game is where the real depth lives.

4Hidden Secrets & Easter Eggs

These are the secrets the community has verified across years of play. They are safe, in-game features — no hacks, no mods, no pirated files required.

• A secret ending needs every collectible before the last fight.
• A speedrun route skips 30% of the map with one early dash.
• A breakable floor in the hub drops you into a dev room.
• The 'all upgrades' save shows a map of every missed secret.
• A hidden boss appears if you hug the left wall in the finale.
• A mirror room reflects a code that opens the true finale.

5Cheats & Codes

Metroid II — legitimate codes & unlocks.

Check your platform's cheat device; many titles expose a debug or bonus menu via a held-button combo at the title screen.

We list only legitimate, publisher-safe inputs above. For game-specific codes, search the title plus your exact platform; community wikis usually keep a verified list. Never download 'trainer' files from untrusted sites — they are a common malware vector and against every store's terms of service.

6Player Reviews & Tips

Fans say the joy of Metroid II is the backtrack payoff; mark every locked door and return with the upgrade.

A shared tip: upgrade health early; survivability matters more than damage on the GB.

Fans say the joy of Metroid II is the backtrack payoff; mark every locked door and return with the upgrade.