After the second boss (a girl in a green dress) there is a third dunge with Japanese rooms and the timer is there again. I mean, is there a way to manually freeze it so that you can run through the floors without breaking your head?
The timer only goes away after you've beaten the boss for that area, 3rd area is impossible to get rid of at this time because fighting the boss is unavailable.
No, but you can exit a room and then come back, and the timer will be stopped until you are seen again. You get 30 seconds added to timer for backtracking certain levels as well.
The level of stupidity of some of the questions here could reach the level of questions about how to launch a game or turn on a computer.
Lvl 3 is the japanese building, right? if so, no it's not the same monster. The tutorial is taller white and bald, the screaming monster is purplish with black hair (visible in the game's title pic on the left)
