title screen theme by it'sthecomical
https://www.youtube.com/@itsthecomica8631

P_BlockingWall by fickleheart
https://mb.srb2.org/members/fickleheart.1393/

red ring proximity by exetior mod creators
https://mb.srb2.org/addons/sonic-exe-v4-1-5a-compatibility.480/

MY5TCrimson for sonic.exe himself
https://gamejolt.com/@MY5TCrimson