I FOUND THE MAC OS VERSION OF V4: www.mediafire.com/?ckr1b1cygmv0c5w
Original Video i found (note: this is the privated trailer): web.archive.org/web/20121213124125/http://www.youtube.com/watch?v=3eT9k26X7LY
EDIT: i found more privated videos made by the creator:
NOTE: THE SOUNDTRACK VIDEOS GOT PRIVATED AND REUPLOADED TO THIS CHANNEL
Sonic.EXE - The Game OST: "Hill Act 1 (Reversed)" web.archive.org/web/20130325204621/http://www.youtube.com/watch?v=BVHO2vhSLSI&gl=US&hl=en
SONIC.EXE - The Game OST: Caves of Winter www.youtube.com/watch?v=LoRXZZn61wQ (not archived)
SONIC.EXE - The Game OST: Caves of Winter "Save Select" www.youtube.com/watch?v=LoRXZZn61wQ (not archived)
SONIC.EXE - The Game OST: "Kintobor" www.youtube.com/watch?v=EH0nFp7NJvk&list=PLTcEoKeW9fpgGSGI0huisqvPSfbwiGHbI (not archived)