Unfortunately the game runs in an emulated environment that was Originally made for Commodore Amiga.
For a standalone version that can run directly on a Windows-Pc we use Winfellow with AROS-Rom. Aros-rom is not our product (nor Winfellow). It is in continuous developement. It is free alternative for an Original Amiga Kick-Rom (wich is still copyrighted material). While it is under developement it is still a little bugy (or better to say act a bit differently as the Original Rom). We can't use copyrighted materials nor have we any influence fixing the AROS-rom (i bet they do their best to make it the best possible way).
We're trying to fix some things from our side but unfortunately (for the reasons above) It is not entirely possible. :S