I’d like to make sure that I understood this correctly.
appears in Cave Story (洞窟物語) game. トロ子 calls this after the player enters her hideout. I’d suspect the word やんろー to be a version of 野郎, but I could not find any reference supporting this.
Can I consider it an emotionally flavored version of?
I found some occurrences of やんろー, やんろ, やんろう or even このやんろー, but none with a context that would help me. ヤンロー is apparently some kind of Chinese lamb meat dish.