Here is a concept for a game I quickly made:
100 SCREEN 7 110 G=9.8/10:'gravitation 120 W=1.5:'wind 130 F=2:'force/power behind shot 140 Y=200:'start coords Y-pos 150 PSET (10,200) 160 A$=INPUT$(1) 170 FOR I=0 TO512 STEP W 180 LINE-(I,Y/500),15 181 F=F-G 190 Y=Y-F 200 'G=(G*G) 201 X=X+10 210 NEXT 100 SCREEN 7 110 G=9.6/10 120 W=-.4 130 F=2 140 Y=100 150 PSET (0,Y) 160 A$=INPUT$(1) 170 FOR I=0 TO512 STEP W 180 LINE-(I,Y),15 181 F=F-G 190 Y=Y-F 191 IF Y>210 THEN F=F*-1 200 'G=(G*G) 201 X=X+10 210 NEXT
The ultimate goal is to have 2 players shooting at eachothers tanks. Who first destroys the other wins 
It roughly based on this amiga game
Just guess what I played on my Amiga, 10 minutes ago 
