The collectors over at http://hiddenpalace.org have come upon and made available a downloadable, playable rip from their beta copy of the unreleased game Ecco II: Sentinels of the Universe!
Here is a quote from their website:
This game features a few playable levels via level select with a complete working debug mode. There is no music and sound but perhaps there are leftovers on the disc. Keep in mind, development on the game had only just begun before it was canceled, so this might be perhaps all there is in terms of playable builds
Go here to get all the info and grab a copy for yourself to try out:
http://hiddenpalace.org/News/Ecco_II_-_ … th_part_1)