Donkey Kong Junior

Mario captured and locked up a big brown ape.
It was up to the gorilla's son to help him escape.
He had to climb and avoid enemies in order to set Donkey kong free.
But Mario would move Kong when Junior grabbed the key.
Junior soon learned that Mario's bite was worse than his bark.
He tried to kill Junior with Snapjaws, birds and even with electric sparks.
Mario tried to eliminate him with those enemies but Junior wouldn't stop.
He finally unlocked his dad's cage by pushing six keys to the top.
Mario ran after them when Junior freed his papa but Donkey Kong gave him a good kick.
Mario then ran in the opposite direction and I mean that he ran quick.
He didn't like getting his butt kicked by Donkey kong and his son.
That was the only time that Mario chose to be the villain.