School Corridor

"This School Corridor is from the school that a monkey and his only bloon friend studies. It's indeed a 12-hour-long stay in there."

The School Corridor is an extreme track that is unlocked on Rank 55. The bloons go from the left and then to the right

Overview
 Here, it features a corridor with a poster on the top near-left saying "Thank you for not vandalizing this wall", and some markers saying "Wat. LoL.", also, there is another poster that says "What happened to the SOS Brigade???????"

Also, there is a window that is covered by the blinds (Can't draw. Read the caption of the photo), and the floor is darkened to reflect the combined footsteps from the students, also, cleaned, stepped again and so on.

Trivia

 * This is one of the tracks that is from a real location.
 * The school corridor is the very same school corridor from the very same school that the maker of this track studies.
 * The "What happened to the SOS Brigade???????" may refer to the- *Error*
 * This is on the second floor of the school.