Mr and Mrs Snowman
This is a boss event, its a festival event from around the Christmas period but has not been taken away as many enjoyed it. These two competitors have a massive damaging AoE, so when you see it RUN!!! and if you get them both at the same time, your not gonna win an award for dying. With a combined life total of 38000k HP (Mr 13000k and Mrs 25000k) its a quick and easy battle if done right.
There is sometimes a variation of these with Mike and Jenny, or mixed in with Thor, or sometimes mixed in with the panda brothers.