New headcanon: Waluigi has just as much a grudge with Tails as he has with Luigi
Is he jealous of Tails' IQ? Is he still angry after Tails ran into spikes when he was playing the Sonic 2 special stage? Does he mistake the kit's optimism and pluck for smug and snark? I don't know.

Is he jealous of Tails' IQ? Is he still angry after Tails ran into spikes when he was playing the Sonic 2 special stage? Does he mistake the kit's optimism and pluck for smug and snark? I don't know.