Sonic R, the 1998 port of the Sega Saturn game, saw numerous enhancements. A weather system, 4 player split screen action and much better textures. It would later see a 2004 re-release which included new bugfixes and additions. In 2005, the PC version was ported to the PS2 & GameCube as part of the Sonic Gems Collection compilation.
Wow, getting this running under Windows 10 was a nightmare. Even more so getting the music to work without having to have a ISO/CD always be in the tray. Much hair was lost getting this far, but it was worth it. 1080p. ... https://www.youtube.com/watch?v=cQ-KOWljatU
Sonic 1 and 2 on the Sega CD; the title screens and first levels of each game anyway. Concept hack/port from 2006, from Stealth, one of the guys who are working on the upcoming Sonic Mania.
Emulator: Genesis Plus GX (BizHawk). Controller used: Sega Saturn via USB converter.
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https://www.youtube.com/watch?v=zbtnyZeaYLw
A playthru of Green Hill with custom music I modded in myself.
Act 1 music: https://www.youtube.com/watch?v=KmfwBdYGziY
Act 2 music: https://www.youtube.com/watch?v=PWExKaMChYI
Music Credits: James Blackburn (Act 1) & longestsoloever (Act 2).
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https://www.youtube.com/watch?v=RAy2ItTOvSg
Mod for the 1997 Windows version of Sonic 3D that replaces the old, heavily compressed tracks with all-new high quality FLAC audio sourced directly from the original Sega Saturn release.
Music ripped by myself using Exact Audio Copy. Release available in FLAC and WAV.
Link: https://gamebanana.com/gamefiles/13261
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https://www.youtube.com/watch?v=8Pdz1jeHJs0
Silent Hill 3, the last of the good SH games (sorry SH4, you're OK in your own way, but you don't even come close to SH1-3). Start of the game up until the first, true monster encounter. Widescreen, 1080p.
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https://www.youtube.com/watch?v=dcdfZjSVrG4
Bones Burger's excellent Starlight level mod was updated fairly recently. Now it's even more faithful to the original, with breakable walls and the odd new item placement.
Link: https://gamebanana.com/maps/198397
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https://www.youtube.com/watch?v=26ixTDoNCIY
Game by: Chengi, Ben & Mitch.
Link: https://sonicfangameshq.com/forums/showcase/petit-hedgehog-sage-2018-demo.138/
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https://www.youtube.com/watch?v=cvWioQhLZ6E