|Prince Matthew von Koopa|
|Date of Birth||November 21, 1994|
|Aliases / Nicknames||Murderous Hippie, Bright Koopa|
|Living Town||Dark Land|
|Main Element(s)||Rainbows/sky, poison|
|Vulnerable to||Mega Mushroom stomps|
|Relative(s)||Austin Khan Koopa (brother), Abel Koopa (brother), Aiva Opel Koopa (friend), Niko Koopa Jr. (brother), Aidan T. Koopa (brother), Nolan C. Koopa (brother)|
|—Matthew von Koopa talking to his younger brothers and cousins|
Matthew von Koopa is the oldest koopaling and very deadly. He has killing problems and a hippie sometimes and that's why his nickname is "Murderous Hippie". His body is rainbow colored and cares for his brothers, sisters, and Aiva O. Koopa. His elements are rainbows/sky and poison.
Super Mario Bros. 3
Matthew is the last koopaling fought and falls out of the sky.
Super Mario World
He rules Matthew's Sky Kingdom