Tony and Joseph playing at the park, where they hang out everyday
BANANA SPLIT MAN
Tony and his mom moved to Middletown, without Tony's father. Joseph was always curious about this part of Tony's life, but he didn't want to push Tony
YOU DESERVE THIS!
In reality, Tony's dad was a villain called the Ice Cream Man who was hurt badly by another villain, called the Joker! At the moment, the only idea Tony's mom had to create a safer environment around Tony was to move hundreds of miles away.
His Legacy Will Be Mine
After being hurt, the Ice Cream Man evolved and became a better villian, his new name was the Banana Split Man. He was looking to get revenge from the Joker.
A couple months after evolving, the Banana Split Man puts raisins in the Joker's ice cream knowing the Joker is super-duper allergic to raisins. The Joker proceeds to die from this allergic reaction.
As the years pass, the Banana Split Man doesn't rest to steal the Jokers legacy. And Tony isn't aware of his father's wrongdoings.