Oh yeah, Grace can tell if you're a caca, who the hell let little jimmy play on the playstation? He's made his name gibberish and picked customization pieces randomly, and has discovered bugs on the earlier builds, but the developers (Alice's Toolbox or something like that to replace Garalina) only fixed the ones that softlock or crash, while intentionally keeping arbitrary code execution for testing things like how that one final fantasy game did or whatever game it was
Draw Mode is used to solve papers, students will be able to draw the answer on the line or whatever, it will give you suggestions so it isn't impossible to it to detect the one you want it to register like a how ds games struggle, others might have things to write on papers and teachers might do stuff like grade papers or something like that
Mister Compass is a portable Tool if you steal him from Miss Circle in hard mode and he will sometimes follow you like a party member, in easy and normal mode he isn't Miss circle's weapon and since miss circle has both arms (in easy and normal mode) but only a miniature compass weapon she gives the compass to Mister Compass
He can be asked questions whenever he's in your inventory or with you in hard mode but in the other two you have to go to him to do that, he will give you hints or advice
The Counselor's (will be either an original character for this or a player chooses this from their class) games will be different but they will be cameos from a few of the popular aus, like danger or science, and more than one will be playable