There are various command-line options available:

-drivea <filename> <\A>	= specify disk image to insert into drive A (\A for autorun)
-driveb <filename>	= specify disk image to insert into drive B
-cart <filename>	= specify CPC+ cartridge to insert (will restart in CPC+ mode if not selected)
-frameskip <number>	= specify frame skip (0=none, 1=draw a frame, miss a frame, draw a frame etc
-crtctype <number>	= specify crtc type to use in the emulation (0=hd6845s/um6845, 1=um6845r, 2=mc6845, 3=CPC+ ASIC)
-tape <filename>	= specify .tzx/.cdt tape image to use
-cpctype <number>	= specify cpc type (0=cpc464, 1=cpc664,2=cpc6128,3=cpc464+,4=cpc6128+,5=kc compact
-snapshot <filename>	= specify snapshot (.sna) file to auto-start

-Fullscreen		= Fullscreen mode