A relatively polished pretty simple gameplay loop. With a interesting concept, of just annoying the absolute heck, out of everyone in your class, and do it entirely realistically, AKA, the teacher is blind when they look at the board.
It's also got some simple controls that are well explained. Though it would be nice if there was a punishment, outside of the teacher seeing you, or if the teacher seeing you didn't affect annoyance. Cause it's a bit weird if it does, though it makes sense to have just one stat for clarity and within the time limit.
Otherwise it's a interesting concept that could have some cool expansion, weird stuff you setup to annoy people, or tools to do it with, or other people annoying you back, etc.. So overall, pretty good.
Also the comments were great, especially the menu.