It's sweet to see tough/evil guys still maintaining a strong love for normal animals they keep as pets, like Doom Guy did for his rabbit Daisy, or WoW's only living creature in the Naxxramas Raid being a cat named Mr.Bigglesworth who belonged to a Lich named Kel'Thuzad.
Again, another great expression on Wario's face and I want to believe Easter is the one time of the year where he swaps out his iconic "Have a rotten day" with something like "Have an 'egg'cellent day... a 'rotten egg'cellent day, that is" followed by his usual obnoxious laughter.