I know that the hitboxes are strange but this is fixed in the new version of the game (which I can't upload because of the jam) (btw, the Highscore Ingame is also in the new version). I also know that the font is kinda strange, I think I can't really do anything because I thing gamemaker made the font strange xd. Now the thing with the different car speeds etc: The cars get faster every 15-30 seconds, but I already planned to add different speed on every car when I add planes and more to the game. And the last thing: I don't know really what you mean with "the resolution picked in the browser wasn't the proper one?" but what I can say is that the viewport is scaled up a bit so you can see the screen better.
Thank you for your really nice feedback. I'm currently working on an update to make the game playable on mobile. And I'm also thinking about adding your idea to add planes to the game but that will take some time.
It's a very nice game but the controls are really weird. It would be nice if you make the controls a little bit more reacheable.
EDIT: It only occurred to me now that I don't have the US keyboard layout but the German one and that the game was most likely made with the US layout or something and was optimized for it.
