Atari 8-bit Source code

0 REM   
1 GRAPHICS 3:​POKE 752,​1:​POKE 77,​0:​R=DPEEK(88):​FOR L=0 TO 199:​POKE R+L,​RAND(255)&85:​NEXT L:​O=RAND(9):​P=RAND(8)*2:​M=656:​SOUND 1,​255,​10,​2
2 FOR L=0 TO 3:​?:​FOR I=6 TO 0 STEP -2:​? CHR$(160*(0<>(PEEK(R+O+(P+L)*10)&2^I)));:​NEXT I:​NEXT L:​X=0:​Y=0:​G=9:​H=16:​SOUND 2,​254,​10,​2
3 DPOKE M,​2049:​? "find pattern & press fire!";:​DPOKE M,​2051:​? "DUELL by Sleepy";:​DO:​S=STICK(0):​X=X+(S=7 AND X<9)-(S=11 AND X>0)
4 Y=Y+2*(S=13 AND Y<16)-2*(S=14 AND Y>0):​S=STICK(1):​G=G+(S=7 AND G<9)-(S=11 AND G>0):​H=H+2*(S=13 AND H<16)-2*(S=14 AND H>0)
5 FOR L=0 TO 3:​EXEC J:​POKE A,​PEEK(A)*2:​NEXT L:​PAUSE 1:​FOR L=0 TO 3:​EXEC J:​POKE A,​PEEK(A)/2:​NEXT L
6 FOR L=0 TO 3:​EXEC J:​C=PEEK(B):​POKE B,​C+C*2:​NEXT L:​PAUSE 1:​FOR L=0 TO 3:​EXEC J:​POKE B,​PEEK(B)&85:​NEXT L:​IF PEEK(20)>253 THEN EXEC K
7 IF NOT STRIG(0) OR NOT STRIG(1) THEN POKE 77,​0:​V=(X=O) AND (Y=P):​W=(G=O) AND (H=P):​IF V OR W THEN SOUND:​FOR M=0 TO 50:​EXEC K:​NEXT M:​EXIT
8 LOOP:​SOUND:​CLS:​?:​? "Gr8! Player in #";W=1;" wins!":​FOR L=0 TO 3:​SOUND L,​100+L*15,​10,​8:​PAUSE 30:​NEXT L:​SOUND:​PAUSE 200:​RUN
9 PROC K:​FOR L=0 TO 3:​A=R+O+(P+L)*10:​POKE A,​PEEK(A)*2:​NEXT L:​FOR L=0 TO 3:​A=R+O+(P+L)*10:​POKE A,​PEEK(A)/2:​NEXT L:​ENDPROC
10 PROC J:​A=R+X+(Y+L)*10:​B=R+G+(H+L)*10:​SOUND 0,​(RAND(100)+155)&PEEK(19),​10,​14:​SOUND 3,​PEEK(20)&$48,​8,​6:​ENDPROC