Ecco the Dolphin (Jun 14, 1993 prototype)

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Title Screen
Ecco the Dolphin (Jun 14, 1993 prototype)
Build date Jun 14, 1993
Dump status Released
Dumped by drx
Released by drx
File release date December 29, 2019
Origin EPROMs
Labels MD ECCO # 14/6
Dump method True-USB PRO GQ-4X
Ownership drx (2019-Present)
Game Ecco the Dolphin
System Game Gear
Genre Adventure
Release date JP Mar 11, 1994
US Nov 1993
EU Oct 1993
Download Ecco the Dolphin (Jun 14, 1993 prototype) (info, raw dump)

An early prototype of Ecco the Dolphin for the Game Gear.


  • In this build, the SEGA has a slightly different transition from fade in. There is also no sound at the SEGA logo. In the final build, a sound sample plays instead.
  • On the title screen, the normal title theme bgm plays. In the final, a second sound sample plays before playing the title bgm.
  • This build has "Copyright Sega of America Developed by Novotrade" written underneath the logo. In the final, it says "(C) 1993 SEGA Developed by Novotrade". The "Novotrade" credit in the prototype is the same style font as the rest of the text, whereas it uses its own font in the final.
  • There are no gameplay demos post title screen in this build, unlike the final.
  • In the prototype, Ecco sits still when idling. In the final, he bobs up and down.
  • The sonar screen lacks the wave effect in the prototype.
  • The sonar map for the first area lacks terrain on the bottom of the map. This was filled in for the final.
  • Pressing B1 while on the sonar screen brings up a debug menu. In the final, this menu is still present but requires a button combination at the sonar screen to access.




File Type Date Size SHA-1
Ecco the Dolphin (Jun 14, 1993 prototype).gg File 2019-10-29 07:32:19 512 KB 070298f87402e874576f295828edde142482a085


See also


Special thanks to the kind folks at The Cutting Room Floor for playing a big part in obtaining this prototype.