Melons

Melons are a species of characters in JTSF's videos, they didn't have a major role in videos until the Melony Arc. In the Melony Arc they were minor but major antagonists originally thought to have been working for Melony but it was revealed that they had actually been working for an evil copy named Melonis.

History
Before the events of the Melony Arc, watermelons didn't have to big a role in JTSF's videos however when a texture less woman with the body of Melony figured out how to make them come to life she made them evil.

Melony Arc
During the Melony Arc they originally were just food Mario, SMG4, and JTSF were eating however they became minor antagonists after Melonis pretending to be Melony turned them evil. They would become basically annoying evil guards and shoot everyone they saw they would continue working for Melonis until the episode The Impersonator after one melon overheard her recording planning to kill them after her plan worked in The Juicy Infiltration. After killing Melonis they would help the members of the Mushroom Kingdom until they had fully rebuilt the kingdom and even made their treaty official thanks to Chris Gordman and Swagmaster6969696969

Physical Appearance
Unless your talking about Melony or Melonis melons appear to be an oval shape with different shades of green stripes on them.

Personality
Initially until the Melony Arc, Melons didn't have personalities and were just food you eat but when Melonis made them come to life they became evil and killed anyone in front of them who wasn't a melon without thinking twice making them a kind of psychopath. After they discovered Melonis wanted them dead to they realized what they were doing was bad and turned a new leaf becoming sorry and having remourse for what they did and joy when they got their treaty officialized.