Hm... I think perhaps I shall suggest something like.... a pirate's bay in sweden, and ah... searching for the sword art online novels. For really quick information mining. Erm... haha.
Fatigue and hunger exists in sword art online, and characters don't get out of breath, but should make sure to breath extra or take in more air, because the body will be reacting like it should be out of breath and such, or some such thing. Fuck it, I'm just bustin out a quote.
"Sword art Online Volume 1 Chapter 1" said
The blue line—called the “HP bar”—is a visual rendering of my life force. There was still a little over 80 percent left. No, this phrase isn’t appropriate enough. Right now, I was about 20 percent closer to death.
I dashed backwards before the enemy’s sword even began its attacking motion.
“Haaa…”
I forced a huge breath to steady myself. The «body» in this world didn’t need oxygen; but the body on the other side, or rather the body lying down in the real world, would be breathing heavily. My limp hands would be soaked with sweat, and my heartbeat would be off the charts.
Of course.
Even if everything that I see right now is nothing more than a rendering of a 3D virtual reality, and the bar being reduced was nothing more than a bunch of numbers that showed my hit points, the fact that I was fighting for my life didn’t change.
When you think about it like that, this fight is extremely unfair. That’s because the «enemy» in front of me — a humanoid with dully shining arms covered in dark green scales along with a lizard’s head and tail—was not a human, nor was it really alive. It was a digital lump that the system would replace however many times it was killed.
—No.
The AI that moved the lizardman was studying my movements and enhancing its ability to respond to them with every second that passed. However, the moment that this unit was destroyed, the data was reset and it did not pass on to the unit that would be regenerated in this area.
So in a sense, this lizardman was also alive — A single being unique to this world.
Also, beginner boars are called Frenzy Boars.