Fun, short game. :)
It seems like the player is at the mercy of whether the time pick-up appears or not. If time counts down while there are none to collect there's nothing to be done about it.
I tried to increase the chance of getting time powerup by looking at the time remaining. But that just caused the game to never end and it kept going until you hit a bomb. So I had to change it.
Thankyou for playing tho. Glad you had fun :)