Sam Greszes is a writer and podcaster currently based in Chicago. He has written for internationally distributed print publications such as ION Magazine and prominent websites like Eater, UPROXX, Kill Screen, and Thrillist for over a decade. He also thinks he can beat you in a thumb-wrestling match, but he's probably wrong.
To unlock him, you must first beat the game on Very Hard difficulty without losing a life. Then, he will challenge you. You must defeat him in this battle to unlock him for play in Arcade and Versus modes.