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Blue Shark
蓝鲨
Blue Shark is a single-player action arcade game released by Midway in 1978. The player controls a submarine viewed from above, navigating underwater and shooting upward at enemy ships passing across the top of the screen. The game uses a vertically oriented black-and-white display. Players fire torpedoes to destroy surface vessels while avoiding depth charges dropped by those ships in retaliation. The difficulty increases as the game progresses, with ships moving faster and dropping more depth charges. Points are scored for each vessel destroyed. Controls consist of a joystick for lateral movement and a button to fire torpedoes. The game has no fixed level structure, continuing until the player loses all lives, making high score the primary objective.
- Developer
- Midway
- Released
- 1978
- Platform
- Arcade
- Genre
- Action
- Players
- 1P
- Rating
- 4.5 / 5 (4.9K)
- Last updated
Blue Shark Controls — Arcade Keyboard Keys
Default keyboard bindings for Blue Shark on our in-browser Arcade 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 |
|---|---|---|
| ↑ | Joystick Up | Move up |
| ↓ | Joystick Down | Move down |
| ← | Joystick Left | Move left |
| → | Joystick Right | Move right |
| X | Button 1 | Primary action (jump / confirm) |
| Z | Button 2 | Secondary action (attack / cancel) |
| S | Button 3 | Tertiary action |
| A | Button 4 | Quaternary action |
| Q | Button 5 | Fifth button |
| W | Button 6 | Sixth button |
| 5 | Insert Coin | Insert coin |
| 1 | 1P Start | Start / Pause |
Coin and Start are convention "Insert Coin: 5" and "1P Start: 1". Some arcade boards expect specific button mappings — check the in-game prompts on coin-up.
Rebind any key from the EmulatorJS in-game settings menu (gear icon → Controls). A connected gamepad auto-maps to the same buttons.
Blue Shark Longplay & Gameplay Videos
Watch a full playthrough of Blue Shark on Arcade before you dive in — recommended for getting a feel for the game's pacing, story beats, and difficulty curve.
Watch longplay on YouTube
"Blue Shark" Arcade longplay 1978
External references
Frequently Asked Questions
When was Blue Shark released?
Blue Shark was released in 1978 for the Arcade.
Who developed Blue Shark?
Blue Shark was developed by Midway, available to play in your browser on RetroGameSpace.
How many players does Blue Shark support?
Blue Shark is a single-player Action game for the Arcade.
What type of game is Blue Shark?
Blue Shark is a Action game for the Arcade, playable instantly in your browser — no downloads, no installs.
How can I play Blue Shark for free?
Open this page and click "Play Now" — Blue Shark runs free in your browser via WebAssembly emulation. No account, no payment, no installer.
Do I need to download anything to play Blue Shark in the browser?
No. Blue Shark streams from a public archive into a browser-side Arcade emulator. Nothing is installed on your computer.
Can I save my progress in Blue Shark?
Yes. Save states are stored in your browser (IndexedDB) per game, and you can also use any in-game save the original Arcade cartridge supported.
Does Blue Shark work on mobile devices?
Yes — the Arcade emulator runs on iOS Safari and Android Chrome. Touch controls overlay the game; landscape mode is recommended.
Is it legal to play Blue Shark this way?
RetroGameSpace is a transient caching reverse-proxy and does not host first-party copies of Blue Shark. 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.
