Tyrannel is a Koopa Troopa that works for Bowser, although he is not that antagonistic or evil.
Tyrannel, although he works for Bowser, is very optimistic about everything. However, his cheerful personality annoys Bowser and the rest of the Koopa Troop.
He is able to smash into things with his shell, part of the reason why he gets in trouble with Bowser so often.
He lived in the Mushroom Kingdom, unlike other Koopas. He hung out with Yoshi, his best friend at the time. One day, he accidentally moved to one of Bowser's territories. Soon afterwards, he decided to join Bowser in hopes of spreading cheer and joy throughout the land without him knowing.
-Tyrannel can be quite annoying at times with his optimistic personality.-
-Yoshi used to be best friends with Tyrannel.-