Really fun game, eventhough the song is a bit short so the loop kinda gets annoying after some time :D
After reading the comment about clicking reducing the timer I managed to refill the timer to max by eating enough rats. I would suggest making it decay a bit faster the more points you get.
The visuals are good but maybe a bit too bright for my eyes :D
This could be a great prototype for another Survivor game :)
Add waves, power ups after each wave and increasingly stronger enemies and this could get an entertaining game for a longer while!