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Hammerin' Harry
A landmark action game for the NES, Hammerin' Harry combines tight controls with engaging gameplay. Its enduring appeal lies in the perfect balance of challenge and reward.
- Developer
- Irem
- Platform
- NES
- Genre
- Action
- Players
- 1P
- Rating
- 4.6 / 5 (738)
- Last updated
Hammerin' Harry Controls — NES Keyboard Keys
Default keyboard bindings for Hammerin' Harry on our in-browser NES emulator. Plug in a USB or Bluetooth gamepad to auto-detect mappings, or rebind any key from the emulator settings menu.
| Keyboard | Console button | Typical use |
|---|---|---|
| ↑ | D-Pad Up | Move up |
| ↓ | D-Pad Down | Move down |
| ← | D-Pad Left | Move left |
| → | D-Pad Right | Move right |
| X | A | Primary action (jump / confirm) |
| Z | B | Secondary action (attack / cancel) |
| Enter | Start | Start / Pause |
| Shift | Select | Select / Mode |
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Hammerin' Harry Longplay & Gameplay Videos
Watch a full playthrough of Hammerin' Harry on NES before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Hammerin' Harry" NES longplay
Hammerin' Harry Cheat Codes
5 community-curated cheats for Hammerin' Harry. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
-
Infinite Energy (Except Against Spikes)
SXULUKSE -
Infinite Lives
SZKZKOVK036A:09 -
Infinite Energy [Except Against Spikes]
SXULUKSE -
Infinite Energy
04FE:04 -
Invincibility
0510:02ESSNPTEY+SESYTVSX
External references
Frequently Asked Questions
Who developed Hammerin' Harry?
Hammerin' Harry was developed by Irem, available to play in your browser on RetroGameSpace.
How many players does Hammerin' Harry support?
Hammerin' Harry is a single-player Action game for the NES.
What type of game is Hammerin' Harry?
Hammerin' Harry is a Action game for the NES, playable instantly in your browser — no downloads, no installs.
How can I play Hammerin' Harry for free?
Open this page and click "Play Now" — Hammerin' Harry runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Hammerin' Harry in the browser?
No. Hammerin' Harry streams from a public archive into a browser-side NES emulator. Nothing is installed on your computer.
Can I save my progress in Hammerin' Harry?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original NES cartridge supported.
Does Hammerin' Harry work on mobile devices?
Yes — the NES emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Hammerin' Harry this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Hammerin' Harry. Game files are fetched on demand from publicly-accessible archives. You are responsible for compliance with your local laws and the bring-your-own-ROM principle.
