The itch page also contains a downloadable windows build.

More information about Adventure Arena can be found in the manual.

  KB+M Gamepad
Move WASD LStick
Attack LMB/Space B
Quick1 1 DPAD Left
Quick2 2 DPAD Up
Quick3 3 DPAD Right
Action E A
Roll RMB/Ctrl X
Jump Shift Y
Menu Tab Start
Lock Toggle MMB RStick Press
Lock Right V RStick Right
Lock Left C RStick Left