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Demon Sword
Demon Sword is a side-scrolling action game developed by TOSE and released in 1990 for the NES. The player controls a swordsman progressing through multiple stages filled with enemies and bosses. Combat relies on sword attacks, with success depending on proper timing and positioning against opponents. The game features action-focused gameplay where players must dodge incoming attacks while finding openings to strike. Each stage increases in difficulty, introducing more challenging enemy patterns and stronger boss encounters. Players navigate the levels using standard NES controls, attacking with the sword and managing movement to survive encounters and advance through the game's campaign.
- Developer
- TOSE
- Released
- 1990
- Platform
- NES
- Genre
- Action
- Players
- 1P
- Rating
- 4.4 / 5 (820)
- Last updated
Demon Sword Controls — NES Keyboard Keys
Default keyboard bindings for Demon Sword 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.
Demon Sword Longplay & Gameplay Videos
Watch a full playthrough of Demon Sword 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
"Demon Sword" NES longplay 1990
Demon Sword Cheat Codes
30 community-curated cheats for Demon Sword. Tick any to activate them automatically when you click "Play with cheats" — or copy a code into your own emulator.
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Infinite Powers And Lives
AESVLTPA -
Infinite Lives
SXSIYASA007D:02007D:99 -
Start Game With 1 Life
AEVSUIZA -
Start Game With 6 Lives
IEVSUIZA -
Start Game With 9 Lives
AEVSUIZE -
Infinite Life Energy
SZKGTTSA -
Phoenix Always Rescues You
VTVTAESX -
Infinite Fire/Lightning/Power Beams On Pick-Up
SLNNANSO -
Extra Dart Strength
VTNXAOSE -
Start On Level 2
PANZLPAA+ATNXAOSA -
Start On Level 3
ZANZLPAA+ATNXAOSA -
Start On Level 4
LANZLPAA+ATNXAOSA
Show 18 more cheats Show fewer
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Start On Level 5
GANZLPAA+ATNXAOSA -
Start On Level 6
IANZLPAA+ATNXAOSA -
Start With 44 Red Spheres
XZNZGPSA+VEEZYOSE -
Start With 44 Black Spheres
XZNZGPSA+VEEXZOSE -
Start With 44 Fire Spheres
XZNZGPSA+VANXLOSE -
Start With 44 Lightning Bolts
XZNZGPSA+VANXTOSE -
Start With 44 Power Beams
XZNZGPSA+VEEZPOSE -
Infinite fire/lightning/power beams on pick up
SLNNANSO -
Infinite Energy
007E:08 -
One Hit Kills Enemies
0366:00 -
Invincibility
SZUEUZAX -
Hit Anywhere
ALXGAYSU+ATXGPNEP+SXNKPVGK -
Can't Be Hit
0033:01 -
Character Sprite Modifier
0040:00 -
Level Modifier
0057:00 -
Float Effect
0086:00 -
Infinite Shields
0200:99 -
Infinite Lightning
0201:99
External references
Frequently Asked Questions
When was Demon Sword released?
Demon Sword was released in 1990 for the NES.
Who developed Demon Sword?
Demon Sword was developed by TOSE, available to play in your browser on RetroGameSpace.
How many players does Demon Sword support?
Demon Sword is a single-player Action game for the NES.
What type of game is Demon Sword?
Demon Sword is a Action game for the NES, playable instantly in your browser — no downloads, no installs.
How can I play Demon Sword for free?
Open this page and click "Play Now" — Demon Sword runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Demon Sword in the browser?
No. Demon Sword streams from a public archive into a browser-side NES emulator. Nothing is installed on your computer.
Can I save my progress in Demon Sword?
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 Demon Sword 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 Demon Sword this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Demon Sword. 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.
