I think this game needs weapon hotkeys, it can get annoying when the enemy is jumping to your position and the shotgun is 10 taps of the spacebar away, instead of only having to press a number button.
At first glance (first 5 levels) this looks like a good game but it could do with some key bindings for the lights, seeing an accident about to happen and pressing a button to stop it takes about 1/2 a second, but moving the mouse can take longer, and those cars move fast on some levels
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 "I Love Traffic"){kind=icon}