Hell Bomber
After all this intergalactic warfare, you'll find it refreshing to return to Earth and struggle to cope with a fleet of helicopters whose pilots are committed to wiping out your fair city. Thankfully, you're in control of the metropolitan laser tower and it's up to you to shoot down the bombs before they hit the city. You'll get points for every bomb you hit and, whilst you can wipe out a chopper if you feel so inclined, you will not add to your tally by so doing.
The game is over once one of the bombs finds a clear path to the ground or the laser tower itself is destroyed.
10 REM HELI-BOMBER
20 REM @ ROBERT ERSKINE
30 MODE 1:BORDER 0:INK 0,0:INK 1,24:INK 2,20:INK 3,6:WINDOW #1,1,40,I,25:PAPER # 1,0:PEN #1,1:CLS #1
40 GOSUB 880
50 SC=0:HS=0
60 LOCATE 14,1:PEN 1:PRINT CHR$(24);"HE LI-BOMBER";CHR$(24);:PEN I
70 LOCATE I,7:PEN 2:PRINT"Your city is u nder attack by helicopter bombers. When a bomb has a clear path	through to the
ground or when your lasertower is destr oyed the game ends. ":PEN 1
80 PEN 3:PRINT:PRINT"Move your laser sig ht with the cursor	keys. Use the COPY
key to fire. ":PEN 1
90 PRINT:PRINT CHR$(24);"You may destroy the helicopter if you	wish, but the g
ame will end.	";CHR$(24)
100 LOCATE 6,21:PRINT"PRESS ANY KEY TO S TART THE GAME"
110 IF INKEY$<>" THEN 110
120 IF INKEY$=" THEN 120 ELSE CLS
130 WINDOW #0,5,36,1,25:PAPER #0,0:PEN # 0,1:CLS #0
140 GOSUB 550
150 LIN=LIN+(2 AND INKEY(2)=0 AND LIN<13