I'm preeetttyyy sure the game speed should be increased late-game. Either that, or put a limit on the room size, considering it looks to take over an hour for one of the minions to go from one side of the room to the other at 500,000 x 500,000.
I'd suggest a speed up, or alternatively, a size increase in the food / snakes?
 "Idle Snake"){kind=icon}
That's because of how the javascript number system works. Nothing I can change except to put a limit on room size, which I will do.