These mysterious lines were seen on Arnold's visual display:
LDA $FF
STA $20
TYX
TAY
LDX #$1B
PHA
It becomes curiouser and curiouser when one notes the clearly
bitmapped, smooth scrolling characters. A theory: 2 68000's
control the display, while the 6502 is his brain. AHA! you say --
How could he ride a motorcycle like that with only 64K of
addressable RAM? Answer: Bank switching.