Are Bullet Bills Alive?

[Godot]

most bills aren't sentinent

Why would some, but not all, of the same thing (Creature? Species?) be sentient? It seems weird for an arbitrary selection to be sentient when others are not.

[BP]

I wouldn't say sentient and organic have anything to do with each other in Mario anyway. The question is more of what the minimum requirement is for something to be "alive," as examples of all combinations exist.

Clearly alive but probably not sentient: M&L:SS Goombas, Yoob, Little Mousers

Clearly sentient but would make sense to be inorganic: Yakkey, Monsieur Broque, some Thwomps

Clearly organic and clearly sentient: Lubba, E. Gadd, Wario

Clearly inorganic and clearly non-sentient: Coin, hammer, boot

[The Chef]

Little Mousers (aka Squeeks) are pretty sentient in Paper Mario. Ms. Mowz is one of them. :U

[Weegee]

She's driven solely by primal, animalistic, instinctive lust, not reason.

[BP]

The ones in Yoshi's Island and Mario Kart don't seem to be. Renaming them in TTYD I took as a retcon to them being little mousers at all

[The Chef]

They're both still called "Chū-san" in Japan. I took it as the localizers wanting to give them an English name more in line with their Japanese name, as they otherwise have nothing to do with Mouser.