Bro-Op was "Mystery Science Theater" for video games. It was a cult television program from an alternate reality.
It wasn't a let's play, or clickbait, and it definitely never went viral.

C̸̢̺̓̈̅̽̔͝Ļ̸̢̱̫̓̐͂͠͝͠A̸̧̮̟̟͊̍̈́̌̍͘Ś̷̢̨̬̳̝̳̰̄͋̓S̸̳͍̲̞̾͌̔̍͗̂̄̋̈́̐I̵̯̞̋̒̊Ç̴̢̣̩̘̰͊̔́͛͌̓̃͐ͅ ̶̨̖͉̪͍̗͍̓̕M̴̱̩̩̖̝͕̯̈́̍͘͘Ǫ̵͙͚̱̦̦̓̆͝D̴͙̞̺͙̲͗͂͂̆̐͋͜ͅE̶̙̼͓̝͋͂͂̏̍̔͒ͅ
Episodes with red text in the thumbnail are mostly observational comedy and gameplay highlights.

S̷̨̮̰̈̎̈́͒̉̑T̴̘̪̮̔̂̓̓̄̈́̅̕͜Ȏ̶̞̺͌̄̒͋̔̓͘ͅŖ̸̪̩̗̬̲̣͂Y̶̡̝̮͙̥̮̱̣̿ ̴̨̱̙̺̟͙̠̒̀̎͑͆́͋̕M̶̡̺͍̓͒͌͑O̵̡̢̠̪̟͓̣̝̠̜͒̑̊̌̈͝͠͠D̶̺̻̞̜̼̝̺͇̀͋Ȩ̶̢̲͔͚͎̻̖̖̋͘
Episodes with blue text in the thumbnail are improv machinima stories, where the cast members are unwilling character actors who really just want to play video games.

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