Monster Kid

"Yo... Y-you'd b-better st-stop r-right where you are... Cause if you w-wanna hurt anyone else... you're... You' re gonna have to get through me, first. A... and... and... In my way."

- Monster Kid to the protagonist in Genocide Route. "Undyne... You.... You saved me! Huh? They ran away? Yo, you're wrong... They went to get help! They'll be back any second!!"

- Monster Kid to Undyne if the protagonist decides to run away in Neutral Route. Monster Kid is a character in the indie game Undertale, released in 2015. He is a monster who lives in Underground with the other monsters. He acts as the supporting character in Neutral and True Pacifist Routes, and as the heroic antagonist in Genocide Route.

Appearance
Monster Kid is a yellow, reptilian kid monster with no arms, spikes on the back of their head and a tail. He has brown markings under their black eyes. He wears a yellow shirt with brown stripes and brown shoes.

Personality
Monster Kid is an innocent monster who thinks only good things. Despite he is a weak, he is also a brave kid as seen in the Genocide Route when he is trying to stop the protagonist and in the Pacifist Route when he is stopping the Undyne to hurt the protagonist.

Genocide Route
In the Genocide Route, when the protagonist arrived Snowdin Town, Monster Kid appears near the tree and claims that everyone ran and hid somewhere, adults can be dumb and the monsters have Undyne to protect them.

Later, the protagonist encounters Monster Kid in Waterfall and Monster Kid says he is hiding for see Undyne and claims that Undyne is the coolest monster and he wants to like her when he grows up. Later, when the protagonist walking, he encounters Undyne and he hides in tall grasses and later Monster Kid exists and claims that he is jealous because Undyne staring at the protagonist.

When the protagonist is walking with or without umbrella, Monster Kid appears again and walks with the protagonist, talking about his school project and Undyne etc.. Later, they encountered a wall and the protagonist climbs on Monster Kid's shoulder and goes away.

When Undyne is coming for the protagonist with her spear, Monster Kid comes and says that he will help Undyne to fight, and he sees the protagonist and says that "Undyne is in front of you." And Undyne takes him and goes, Monster Kid says about don't tell his parents about this.

Later, in the bridge, Monster Kid yells the protagonist and he comes to the protagonist. Monster Kid says about the protagonist hurts countless monster and asks about it is true or not. Later, the protagonist approaches him silently and Monster Kid panics and says to the protagonist "If you wanna hurt anyone else, you're gonna have to get through me first." and a battle will begin.

Battle
Despite Monster Kid has 2 ATK and 2 DEF, he won't attack the protagonist and will just quiver anxiously. If the protagonist attacks him, Undyne will comes through and gets one-hit, and she will become Undyne the Undying. If the protagonist spares Monster Kid, Monster Kid says about the protagonist is not bad as he thought and runs away, however, this aborts the Genocide Route and the protagonist will fight Undyne like Neutral Route.