This Ecco prototype shows the universe prologue and the vortex cutscenes right away. It doesn't display a Sega logo or any title screen or copyright information.

The prologue text is mostly the same as in the final version, except that "THOUGHT" is misspelled as "THOUGT". The Vortex Queen falling through the clouds is cut from the final version, but the data for it still remains in the final game's code. The "meteor" cutscene uses different graphics. In this prototype, it shows a background with landmasses, while the final version shows a plain ocean.