X

X appears to be a dependent and nervous but social Algebralien, needing help on finding his value. Not much in said by or about them in "Alone", but they hide behind Four as he took all the power from the Yoylite to try and fight off One for the time being.

BFB X plays a role as Four's assistant. They set up some of the challenges and host Cake at Stake, sometimes handing out prizes to the safe competitors.

X seems to be much more friendly than Four, and is usually seen to be quite happy and friendly towards the contestants. However, X also seems to be quite soft, as they cry after Four stated that nobody noticed their disappearance (despite Cloudy asking about X), and became frightened after Four screeched at them and when Snowball threatened them in "This Episode Is About Basketball". He has a squeaky voice.

They can also be considered a bit ignorant, such as thanking the ground for "catching" Beep after they fell from their plane, or even asking to get screeched by Four. They can also show to get very nervous under pressure. As they host in "This Episode Is About Basketball", they're very hesitant while talking and tends to mess up things, such as reading the votes backwards when Free Food was up for elimination.

X is overall quite docile by nature and remains loyal to Four, even after the times Four has mistreated them. In "Fashion For Your Face!", they have become more confident in hosting. However, in "A Taste of Space", they show a more irritable, somewhat bratty side to their character as they begin subtracting points from the teams for petty and minor reasons.

Notably, in "B.F.B. = Back From Beginning", it is shown that X can be pushed to their limits. When they mistakenly believed Teardrop wanted to quit BFB and didn't care, they shot some sort of zappies out of their eyes which instantly killed Teardrop. It can be assumed that Four's abilities are not unique.

TPOT After returning in TPOT, X is the hotel’s chef with Four, being more similar to his early-BFB self. Like Four, he is strange and erratic in behavior, and can sometimes be cruel or violent to the contestants, such as when he zaps them in "The Great Goikian Bake-Off" or abandons them during the storm in "Category One". However, while not always as kind and gentle as he was post-BFB 9, X is still nicer and friendlier than Four, and never means any harm. He is also more reasonable: for example, in "The Power of Four", he agrees to let Bagged go due to their hiding place being destroyed, accepting that it would be unfair to tag them. Also, when he and Four go on a rampage after Clock's elimination, X only damages the hotel, unlike Four, who attacks the contestants. In general, X is still the more peaceful and good-natured of the two; he simply shares Four's unusual and alien morality.