C//aine gives the humans something he calls "human adapters" to make them feel more normal. It adds an actual, physical need for sleeping, drinking, and eating. Plus, it adds a whole new level of stakes and drama to adventures!
However, in his quest to become more relatable to the humans, he wants to try out these adapters for himself. Unfortunately, unlike the humans, he couldn't exactly base his needs off what his human body was like. Sleep was easy– his bar went red at night and turned green when he woke up. Thirst was also easy, he loved drinking water so he set it to need a glass every hour except when he slept. Hunger was a bit trickier.
So he looked to the humans. They seemed to constantly be complaining about it during his adventures (not really, he just loses track of time easily) so surely hunger must be something that occurs frequently. And if it's so intense it distracts them from their amazing adventures, they must feel it rather strongly.
(He really should've checked the others stats for reference.)
So he set himself to get hungry every hour and made the pangs so intense they couldn't be ignored. Because surely everyone else experienced hunger like that!
I can imagine a few scenarios from there:
1. C//aine is guiding them through one of his adventures, a challenge-based gameshow where he happens to be the host. (Imagine like, Wipeout, where it's basically an obstacle course). He's in the middle of MC'ing when he starts to get hungry. Like. Really hungry. (If you listen close enough you can hear his stomach growling over the mic). So he starts rushing through the adventure, making the courses easier and easier so they will just finish already so he can get some lunch into him.
2. Imagine a D&D style adventure, and C//aine is sticking with them as the narrator. Obviously he starts getting hungry...but damn it, he worked hard on this adventure and he refuses to let something as trivial as hunger get in the way. So he continues on, narrating the story and taking them through the world and building lore, etc, but he keeps getting hungrier and hungrier. And he tries his best to focus, he really does, but being that hungry would distract anyone. He starts forgetting to tell them very important pieces of lore and information, making the adventure take longer and longer while his poor stomach aches worse and worse. Up to you whether he manages to finally get through the whole story, or the others eventually pick up on his suffering and help him.
3. The addition of a hunger bar also means that eventually if he eats enough, it will hit 100%. While he's never needed to eat before, he does enjoy the experience (and also probably snacking as a form of stimulation). But he's never had a limit before. The humans are used to having limited stomach capacity and knowing when to stop themselves. He...does not. Cue him becoming overstuffed many, many times because "he wasn't done eating" or know how to read his fullness cues.
