Lacking of story line...
It was a very unnecessary intro in the creative building and it was hard to figure who were the main characters until the 2nd scene, whom I still do not know the names of.
If you need to look at the credits for the names of the characters, it usually means that they had no real impact on the story or you did not mention their names in the first place.
Only names I heard and remembered were: The Janitor, Geena, and King.
I would comment on the story, but there was no real story or plot. The only thing that is saving this is that it's p1. The problem with this is that you must hook the viewer to watch the next parts in which I am sorry you have failed.
Your jokes were not that funny except for the past relationship between Geena and King but it was immediately ruined by "achievement unlocked" gag. It would had been fine if there were instances of video games in the story but all you had was an art class assignment.
At times the sound effects seem to be louder than the voices. There was no medium to any sound to this flash.
All that aside you have great promise for being an animator. Definitely room for improvement but a lot better than what I seen on this website.
Just work on your story more and the right jokes will come. I'll be there for the p2.