And in the rpg, the hero has to fight a horde of rats. The player presses L1. Summon exterminator.

"What do you wish of me, hero?"

"Kill the rats for me."

"I cannot do that. I only brought the anti-termite powder. You must purchase for me the rat poison and you appear a bit short of cash...however, if you slay these rats here you'd have just enough gold to buy the poison and it will be ready for the next time."

Moral: Damn you, video game irony!

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While passing by an excavation site, one can search and find a 20-sided die. It doesn't do anything. It's just an Easter Egg.