Help guys why does Sonic Forever not work?

Accurate Sonic 1/CD Sprites

DeltaConduit's Tails and Knuckles [Sonic the Hedgehog Forever] [Mods]

Sonic 1 Forever (Sonic) [Sonic 3 A.I.R.] [Mods]

How to Download and Use Sonic 1 Forever Mods - Prima Games

S1F Mania-Lite: Expanded [Sonic the Hedgehog Forever] [Mods]

Sonic 1 Forever: Sonic 1-styled Tails

Revamped Sonic Sonic Forever Mods

SENSITIVE CONTENT] AN ORDINARY SONIC FOREVER MOD [Sonic the Hedgehog Forever] [Mods]

S1F EP (Sonic 1 Forever Expansion Pack) (ARCHIVED) : Expansion pack team : Free Download, Borrow, and Streaming : Internet Archive

Sonic 1 Forever with the expansion pack mod is giving me a new hatred towards labyrinth zone i never had before : r/SonicTheHedgehog