'STH2006 Project Demo 4' (2018) by brianuuu (Generations Mod)
Play through Kingdom Valley from 'Sonic 06', but with 'Sonic Generations'. The project plans to port all stages over.
https://www.youtube.com/watch?v=FyjvdwA8o4k&t=423s&ab_channel=brianuuuSonicReborn
'Cursed Hedgehogs 2: Ken the Penders' (2021) by @PkN0PE (SA2 Mod)
Gives Sonic, Shadow & Knuckles some Archie Sonic makeovers.
https://shc.zone/entries/expo2021/384
'Chaotix' (2023) by Team Combi-Rings (SRB2 Mod)
Brings the Chaotix to 'Sonic Robo Blast 2' - including Bomb!
https://mb.srb2.org/addons/the-chaotix.5734/
'Super Hard Mode' (2020) by Dry Paratroopa (SA2 Mod)
Make things more chaotic, more difficult, and more wild.
https://www.sonicfangameshq.com/forums/showcase/super-hard-mode-sa2.650/
'Project SXU' (2020) by Etendo (Demo)
Aims to recreate ‘Sonic X-treme’ as close as possible, while adding original ideas and concepts.
https://www.sonicfangameshq.com/forums/showcase/project-sxu.525/
'Nuclear Cheetah' (2023) by Spontman (Original Demo)
Bounce, pounce, and slide your way through fast-paced levels as Chaz, the radioactive cheetah!
https://www.sonicfangameshq.com/forums/showcase/nuclear-cheetah-sage-trials.1773/
'Super Mario Land 2 DX' (2017) by @toruzz (Hack)
Turns the original Game Boy game into a Game Boy Color title, and you can play as Luigi!
https://www.romhacking.net/hacks/3784/
'ChronoVenture' (2020) by @Duckilous (Original Demo)
A momentum-based Gameboy-style platformer shooter. Part of the @SAGExpo.
https://www.sonicfangameshq.com/forums/showcase/chronoventure.556/
'Dodge Spree X' (2022) by Samuel Sousa (Original Demo)
A 1-bit 2D forced side scrolling platformer.
https://www.sonicfangameshq.com/forums/showcase/dodge-spree-x.1470/
'Sonic Unleashed 2D' (2020) by Blueblur (Demo)
Part of the @SAGExpo for the year.
https://www.sonicfangameshq.com/forums/showcase/sonic-unleashed-2d.785/
'Petit Hedgehog' (2018) by @Chenginerd (Demo)
A great fan game with a unique sense of style.
https://sonicfangameshq.com/forums/showcase/petit-hedgehog-sage-2018-demo.138/