The compilation was developed internally at Sega, which handled the presentation and consolidation of the included games.[11] The remasters of Sonic the Hedgehog, Sonic 2, and Sonic CD are based on the remakes made in the Retro Engine released between 2011 and 2013;[1] Christian Whitehead, creator of the Retro Engine, updated it to allow the remakes to run in a compilation.[12] The Origins team prioritized the main Sonic series, so they did not consider including other 2D Sonic games, such as those released for the Game Gear, Knuckles' Chaotix, and the Sonic Advance series.[10] Powerhouse Animation Studios produced the new cutscenes with longtime Sonic artist Tyson Hesse,[13] with a script written by Sonic comic book writer Ian Flynn and featuring arranged music by Sonic Mania composer Tee Lopes.[14]