Thanks Shizu - Yes, Arcade is generate term for action game moving about etc. can be shooting or moving with score goal or end goal in mind.
If you look into it - you find an easy way to create Sprites (UDGs in BASIC) using BIN numbers.
BIN 00011000 (8 pixels wide with only two middle pixels turned on)
A standard speccy sprite is 8x8 pixels in size.