Only few words : You can't.
Even if the Raspberry pi is build for Linux (or Rasbian distribution), "Doki Doki" is build only for PC (with an x86 architecture).
Raspberry pi has an ARM architecture (which is not the same as the x86).
There's only one way to play on the raspberry pi : getting the source code (Developers do not provide us this for obvious reason) and "compile" (build) it in the Raspberry pi.
PS : Sorry for the bad english and the technical word on this message.