Four (Battle for BFDI 1-29)

Four is an integer and the main host as well as one of the three main antagonists (alongside Announcer and Purple Face) of BFB, and the non-canon one-episode series, Battle for Permission to Meet 10. Four and their co-host X first appeared in the 2008 video "X Finds Out His Value". They appear to be abstract beings representing real-life numbers, letters, or algebraic variables.

Why They Were Not A True Blue Friend

 * 1) They are basically a ripoff of Chris McLean from Total Drama. In fact, if you take everything likable about Chris McLean away, you get Four in a nutshell.
 * 2) They are a very terrible host, for example, they abuse their contestants, and are even a jerkass to their co-host X.
 * 3) Their voice depending on your view sounds absolutely annoying to listen to.
 * 4) They have absolutely little to no empathy for others. They don’t care about how others feel, as they often bully their friends for no good reason.
 * 5) They are a psychopath, as they keep killing other characters for no reason at all and are just jerkass in general.
 * 6) In BFB 3, they zapped Gelatin for stabbing them by accident.
 * 7) In BFB 16, when the other contestants left Four's show to go to Two's show, they arguably deserve it for being a selfish jerkass.
 * 8) They went insane in BFB 30, where they transformed into objects and tried to kill the contestants.
 * 9) They were very immature & stubborn in BFB 16, where they refuse to get the EXIT contestants out and threw a tantrum for everyone switching.
 * 10) They sometimes go unpunished for their actions to the point where they're part of the Karma Houdini trope.
 * 11) They can't take criticism at all; for example, when Basketball called them pudgy, they got angry, and when Balloony & Lollipop High-Five, they got angry too and demanded them to do a High-Four.
 * 12) They treat most of their contestants like trash. Notable examples include Gelatin, Donut, Basketball, Balloony, Lollipop, Blocky, Taco, Black Hole, Clock, Loser, Profily & Gaty.

Redeeming Qualities

 * 1) They can be likable at times, especially when they returned in BFB 10. Also they were far more likable in X Finds Out His Value and in the non-canon shorts.
 * 2) They were nice to some contestants and sometimes X before their character development.
 * 3) At last, they end up redeeming themselves in BFB 30, where they apologized for their cruel actions.
 * 4) To be fair, BFB would definitely not be as good as it is without them, since they are the hosts of the show and are involved in many of the episode's conflicts.
 * 5) Their voices can be good to listen to.

Reception
Four initially received positive reviews from fans, but later received negative reviews for their extremely mean-spirited and cruel behavior, selfish nature, and lack of empathy towards everyone. They are considered to be one of the worst BFDI characters, alongside Bomby, Flower (in season 1), Fanny and Two.

Trivia

 * They have gained some memes, such as | their quote: I, AM NEXT LEVEL, MAD.