Uploading "Time's Up!" moments from Wii Party since the only one on Youtube before uploading was Zombie Tag.
Chop Chops wasn't anything special. Since I had the Miis cut halfway through the onion, all they did was continue sweating with tears.

The 5minute time limit in Wii Party's minigames is very sparse and rare, and you're unlikely to come across these in gameplay unless you deliberately have multiple people sit and do nothing. The series of videos adds on to the currentlyuploaded Zombie Tag "Time's Up!"
Many of these minigames with hidden time limits are actually "first to finish wins" type of minigames (Chop Chops, Ram Jam, Maze Daze, etc...) which, understandably, makes sense. I am starting with 4player minigames since they are easy to work with, but duel minigames and probably pair minigames also have the hidden time limit.