100 REM PLAYER/MISSILE EXAMPLE
110 DIM A$(512),B$(20)
120 X=X+1:READ A:IF A<>-1 THEN B$(X,X)=CHR$(A):GOTO 120
130 DATA 0,255,129,129,129,129,129,129,129,129,255,0,-1
2000 POKE 559,62:POKE 704,88
2020 I=PEEK(106)-16:POKE 54279,I
2030 POKE 53277,3:POKE 710,224
2040 VTAB=PEEK(134)+PEEK(135)*256
2050 ATAB=PEEK(140)+PEEK(141)*256
2060 OFFS=I*256+1024-ATAB
2070 HI=INT(OFFS/256):LO=OFFS-HI*256
2090 POKE VTAB+2,LO:POKE VTAB+3,HI
3000 Y=60:Z=100:V=1:H=1
4000 A$(Y,Y+11)=B$:POKE 53248,Z
4010 Y=Y+V:Z=Z+H
4020 IF Y>213 OR Y<33 THEN V=-V
4030 IF Z>206 OR Z<49 THEN H=-H
4420 GOTO 4000