This is an UNOFFICIAL Retropie Image built on Raspbian Buster for the Raspberry Pi 4b. This image was created by The Supreme Team with some assistance from monkaBlyat . Here YouTuber DB Tech checks it out….
The default login/ssh for this image is; User: pi Password: supreme
More information about this image can be found in this PDF file: https://cdn.discordapp.com/attachments/645147836325036033/645734338331148308/Supreme_Duo.pdf
The image is 9 GB in size and is in .img format (zipped). After extraction from the .zip, the .img file can be written to sd