Personally, I'm leaning towards really hungry, because I certainly don't feel immortal
Nice job on this one! The art looks really good. I do have one or two smaller pieces of feedback:
1. The character accelerates/decelerates just slowly enough to make them feel like they're on wheels. I would shorten the deceleration curve or turn them into a car
2. For the patrolling guards, a lot of them turn so fast on their patrols that I feel like I have absolutely no chance of clearing some areas first try. I would recommend either giving an option to show the guard's path, or slowing down their turning rate
Once again, well done! I like it :)