This game needs a TON of work. It's good, but random invisible holes that you fall into is just ridiculous. Things like the shrapnel from exploding cars are almost impossible to avoid.
If you don't want to hold down the fast forward button, left click it, then right click it. A box should come up with options, but the button will stay pressed. Just make sure you get rid of the box before the round ends or the game freaks out. (You won't have to quit, you just have to minimize it, then maximize it.)
This game is fantastic. I agree with xoasis, a slow motion timer would be a great addition to the game. It's way too intense for my slow reaction time, but I never cease to enjoy this game!