Shadow of the Colossus remake uses 'original game code

This was confirmed by Bluepoint Games.

Ico and Shadow of the Colossus make triumphant debuts on PlayStation 3 - CNET

Shadow of the Colossus' Remake beginner's guide

Shadow Of The Colossus Remake Vs Original, remake, Shadow of the Colossus, How do you think the Shadow of the Colossus remake compares to the original?, By Who Remembers?

Review: 'Shadow of the Colossus' is one of the best game remakes yet

Shadow of the Colossus review - Polygon

Trader Games - ICO & SHADOW OF THE COLOSSUS SONY PLAYSTATION 3 (PS3 CLASSIC HD) FR OCCASION on Playstation 3

Shadow of the Colossus Looks Amazing on the PlayStation 4: VIDEO

The Pathless is the spiritual successor to Shadow of The Colossus - KeenGamer %

I made Shadow of the Colossus BUT IT'S 2D

Nomad's blog: Unused/Beta Colossi

Shadow of the Colossus' Is Getting a High Definition PlayStation 4 Remake

Shadow of the Colossus remake sales stomp all over the PS2 original - VideoGamer

Shadow of the Colossus (2018), PS4 Game

Unused Colossi, Team Ico Wiki

Meet the Masters of Video Game Remasters - The Ringer