Okay, to beat level 20, open all 5 lights. Leave them open, if you see a car about to hit a car, just stop that specific light.
Keep turning of the lights that would cause an accident, otherwise leave it on.
Not really too hard.
I found a cheap trick.
Stay inside and wait for tons of zombies to line against your walls.
Run out, line up against them and shoot away with the laser cannon.
Comment me if this is beatable.
4~w_i:452.15,361.5|w_i:631.25,359.65|fl_i:540.65,289.05|fl_i:543.3,417.95|fl_i:541.45,258.35|fl_i:544.7,246.4|fl_i:544.7,233.75|fl_i:542.85,217.4|fl_i:542.85,195.75|fl_i:542.85,172.15|fl_i:543.2,158.5|fl_i:541.1,150.5|fl_i:541.1,141.4|fl_i:541.1,130.55|fl_i:541.1,123.3|fl_i:541.1,114.25|fl_i:541.1,105.25|w_i:430,361.65|w_i:410.75,360.4|w_i:392.65,360.4|w_i:376.4,360.4|w_i:652.35,359.6|w_i:667.75,358.6|w_i:685.85,358.6|w_i:703.95,358.6|w_i:721.3,358.35|w_i:736.5,358.6|c_k:537.4,338.65|
Whoa, not fair.
If you play gladiator mode, and you killed the sorcerer after he throws up magic balls, they still hit you as you fight the next gladiator.
That made me lose against the fifth one.
Weird... I think the game sends out a random amount of yellow shapes.
The first three times I got only like 110 without hitting a red and only like 3 million points, and then I got like 150 yellows without hitting a red and got 6 million points...
 "Ultimate Tactics"){kind=icon}
 "I Love Traffic"){kind=icon}
 "Endless Zombie Rampage 2"){kind=icon}
 "Zening"){kind=icon}
 "Crush the Castle"){kind=icon}
 "Warlords: Heroes"){kind=icon}
 "Fantasy Kommander"){kind=icon}
 "Sonny 2"){kind=icon}
 "The Great War of Prefectures"){kind=icon}
 "Neverending Light"){kind=icon}
 "Pandemic 2"){kind=icon}
 "Music Catch 2"){kind=icon}