Pump Man & Nitro Man are two of the numerous robot masters gunning for Mega Man in Mega Man 10. These guy were put together for a contest on Capcom-Unity, and though neither one of them won, Pump Man was eventually reworked into a much cuter Paper Friend who made it into the Udon Mega Man tribute book.
Nitro Man is noteworthy for his ability to retract his legs and turn into a motorcycle, something I always wished I could do. Pump Man can… well, I mean, he’s a pump. So, there’s that. Print your own Nitro Man here, and print your own Pump Man here.