Sorry about the late reply. Yes, emulated runs are acceptable. Just make sure to 1) indicate that the run is an emulation in your submission, B) make sure there is a video of the run, C) make sure there are no emulator related manipulations (ie speed up or save states), and D) make sure that the run is a continuous/ non-segmented run. Basically, play it as if it was on console/ arcade. Thank you for checking beforehand.