Morton Koopa Jr.

Morton Koopa Jr. sometimes known as simply Morton Koopa is a lug of a Koopaling and appears in several Mario games. In SMG4's videos, he makes cameos in videos but his most prominent appearance was in SMG4: Stupid Mario World where he is sent by Bowser Jr. to Donut Plains Ghost House to destroy Mario and Yoshi. Mario goes in by himself as Yoshi is too scared. Morton Jr. sends in some Boos to try and scare Mario but they don't seem to faze him at all. He then shows the Big Boo an old video of Bowser putting his son to bed like a baby which freaks out the Big Boo causing Morton to collapse from his platform. Mario shows Morton Jr. the video who runs away in fear.