In Community season 5 episode 5 "Geothermal Escapism", Abed begins a school-wide game of "Hot Lava" to commemorate Troy leaving Greendale.
After Britta has left the study room and the countdown has ended, the episode goes to the opening sequence, and when the audience returns to the events happening in the school it appears Britta hasn't encountered anyone else, as she is still in the game and she doesn't know any of the new terms for the game (centipeding etc.).
However, in the same amount of time it seems that the majority of the students are now out of the game, as the school is almost abandoned. In addition, several factions have emerged (like the Locker Boys), Shirley Island was constructed, and Buzz Hickey managed to build a fire extinguisher powered vehicle. In addition the school is a wreck, the vending machines have been abandoned and Jeff points out that almost all of the plastic chairs have been claimed.
How could enough time passed have passed for these things to happen, yet Britta was still clueless about the game? Had she hidden somewhere safe when the game started, and emerged once the initial carnage had passed? As I was watching it I couldn't make out whether 2 hours or 2 days had already passed.
Is there any solid evidence of how much time had elapsed since the start of the Hot Lava game and the beginning of the episode after the opening sequence? Or was there an explanation from the writers?