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Play Ecco Jr. (World edition) Online
Ecco Jr.
Play Ecco Jr. online. Choose a young dolphin, use sonar, dash through rings, help sea animals, solve gentle underwater activities, and explore without health or air limits.
Browser play
Sega Genesis / Mega Drive — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / C | S / X / Z |
| X / Y / Z | Q / A / E |
| START / MODE | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Ecco Jr.
Quick start
Choose Ecco, Tara, or Kitnee and begin with the guided lagoon activities. Follow the friendly animals' requests, use sonar to identify or speak with them, and practise dashing through rings or nudging objects. There is no health or air pressure, so explore each area patiently and repeat an activity until its goal is clear. A second player can assist in supported games.
Controls
D-pad: swim in eight directions. A: sonar and communication. B: dash or interact by nudging objects. C: swim faster. Start: pause. Menu choices select the young dolphin and activity; the game is designed without damage or drowning, so missed objectives can be retried safely.
Ecco Jr. 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 · segaMD
- 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.