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Play Deep Blue (US edition) Online
Deep Blue
Play Deep Blue Online — An angelfish-shaped submarine crosses hostile seas in a horizontal shooter.
Browser play

TurboGrafx-16 / PC Engine — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| I / II | Z / X |
| RUN / SELECT | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Deep Blue
Quick start
Start the first sea area and watch the approach angles of the fish. Leave room above and below the submarine before moving toward a weapon pickup.
Controls
Directions move the submarine. II fires the current weapon and RUN pauses.
Deep Blue — About this game
An angelfish-shaped submarine crosses hostile seas in a horizontal shooter. Marine creatures approach from awkward angles, and damage weakens your weapon as well as your survival chances, making careful positioning more valuable than chasing every pickup.
Deep Blue Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · pce
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.