Shadow of the Colossus (PSU Preview), Team Ico Wiki

The PSU Preview is a playable demonstration prototype of Shadow of the Colossus. It was a version of the game presumably distributed to press, dated July 8th, 2005; 16 days after the OPM Demo. It allows for battles of the first three colossi before resetting. The demo wasn't made public until May 15, 2018; when Nomad Colossus published an update to his blog exploring the demo in detail as well as attaching a download link to the ISO at the bottom of said update. Link to the demo Below is a list

I1 Team Ico+BreezeWiki

Nomad's blog

Shadow of the Colossus, Team Ico Wiki

Shadow of the Colossus (PSU Preview), Team Ico Wiki

PlayStation Now Games List - All PS2, PS3, PS4 Games In May 2021 - PlayStation Universe

Shadow of the Colossus (E3 Demo)

Shadow of the Colossus (E3 Demo)

Listen to Nerds Amalgamated podcast

Colossus IV, Team Ico Wiki