How Older Rosen moves around. "CHOCOLATE-CHOCOLATE-CHOCOLATE-CHOCOLATE-HOC-HOC-HOC-HOC-HOC-HOC-HOC"
Also to a lesser extent, The Presents Inspector is seen various times in "Harrybo's House" and "Rio Rosen" saying nothing but "Sandwiches! Sandwiches! Sandwiches!"
Curb-Stomp Battle: In "Chocolate Swiss Cafe Adventure", Older Rosen manages to take out the Potatofoogle in one hit. While he is still alive and loudly complains he never hit Older Rosen, we never see him again. Similar fights occur in Beneath The Cafe against the Pocketfoogle and "Rio Rosen" against the Presents Inspector.
Defictionalization: invoked The "Telly Trilogy" takes three fake TV shows Michael thought of in "Telly" and makes them real.
Loophole Abuse: IRL example, Shakespearean Michael was made because 256Pi's teacher gave an assignment to "recreate" one of three Shakespeare scenes. While this was expected to be acting them out, he chose to make his in YTP form.
During the cafe scene in ''Chocolate Swiss Cafe Adventure", which uses Kevin MacLeod's "George Street Shuffle", a captain briefly appears referencing that the same song was also used in Rog Contracts Multiple Personality Disorder.
Defied in Dead Book of Solomon Jizz, where Older Rosen goes to Platform 9 3/4. A caption briefly appears saying that that is not supposed to be a Harry Potter reference.
The pooper RootNegativeSixteen makes a cameo at the end of Michael's Horrible Halloween (represented by Empress Azalyn, as she is in most/all of her videos), and the shop owner Rob from Dead Book of Solomon Jizz is supposed to be the pooper RobGBA (who used a Michael character in a red shirt to represent himself)