The game is supposed to be played with WASD and Space keys and the countdown is actually a score that measures how far you've traveled. This game will receive a major optimisation update on Tuesday and it will be better. I intended to make a major update fixing all the bugs and finishing up the game in a later version, but considering how much feedback the game has received, it will be posted this week. Promise and sorry for the inconvenience. The finished update should cover up your problems with playing the game. Stay tuned!