“Yo! I’m Monster Kid, but I go by MK if you wanna call me that!” Monster Kid said in an enthusiastic tone of voice, his reptilian tail wagging happily. “I was born with no arms, but my older cousin, Dr. Alphys, made me a pair of robotic arms that are durable and lightweight. They’re even waterproof so I can swim with them!” Marshal beamed happily. MK looked to be around 9 years old. “I don’t use ‘em all the time though, since they sometimes gotta charge.” Monster Kid explained.