Tron one player is a colorful tile mapped light cycle game that takes place on a game grid 10x larger than your Television screen!
 
Tron has already defeated Sark and is tearing up the virtual world, you can go off the game grid but things may not be entirely visible and your chances of crashing increase the longer you stay there; you can also blow up the system RAM and crash in spectacular fashion.
 
The game ends (purple screens) when you crash into your own lightcycle trail, or into system memory  (travel too far to the left or above). How long can you stay alive? Watch the clock for high score or check your Atari wrist computer!
 
The soundscapes change depending upon how long you hold the stick in a given direction, light taps will play crescendos and mini tunes whilst holding it will yield other interesting familiar logarythmic sounds. 
 
Here is the game listing with big constants and plenty of white space:
 
0 if g=0 then g=1:for x=18 to 239:virtualworld(x)=0:next x else f=f+1:goto 2
1 for x=0 to 9:g=g+10:virtualworld(x)=g:next x: x=10:y=5:h=1: rem (dir right)
2 if f<4 then scrollvirtualworldtoggle=0:return else scrollvirtualworldtoggle=1
3 if joy0left=1 then e=1:h=0:i=0:j=0:AUDC0=8:AUDF0=BITIndex:SUSTAINFORFRAMES=15
4 if joy0right=1 then h=1:e=0:i=0:j=0:AUDC0=6:AUDF0=BITIndex:SUSTAINFORFRAMES=15
5 if joy0down=1 then i=12:e=0:h=0:j=0:AUDF0=11:AUDC0=BITIndex:SUSTAINFORFRAMES=15
6 if joy0up=1 then j=12:i=0:e=0:h=0:AUDC0=3:AUDF0=BITIndex*2:SUSTAINFORFRAMES=15
7 x=x-e:x=x+h:l=i/12:y=y+l:l=j/12:y=y-l:BYTErowoffset=BYTErowoffset+i:rem TRON!!
8 BITIndex=BITIndex-e:BITIndex=BITIndex+h:BYTErowoffset=BYTErowoffset-j:f=0
9 if vwpixel(x,y,on)>0 then COLUBK=100:SUSTAINFORFRAMES=100:goto 6 else return

