An NCR Personas ATM? Yeah, it runs Doom.
Most ATMs nowadays use Windows Embedded, so a little industriousness, a copy of DOSbox, a frankly scary amount of hacking (whether that means “a lot of hacking” or “not nearly enough hacking” is left to the reader…), and an I-PAC keyboard encoder result in these guys pumping rockets into the Spider Mastermind instead of checking their balance. Further work has added functionality to the side buttons for weapon swapping!
Frankly, I just wonder how they got their hands on the damn thing in the first place…
Thanks to Max for using the emergency red phone to bring this to my attention!