Blue Fire: His blue flames have the same capabilities as his orange flames, but they’re 3x more destructive because his blue flames are linked to the powerful blue magic he inherited from his dad, a bossmonster. However, it requires a lot more energy to summon than his orange flames, so Berlin prefers not to wield them as to avoid straining himself.

Bones: He’s fairly good at wielding his bones, but gets abit jealous when his old man, although in good fun, one-ups him every now and then.

Blue Mode: Allows him to manipulate gravity and levitate objects. Can also use the Special Attack.

Orange Mode: Allows him to move at extremely high speeds, as well as being able to force others to do the same.

Teleportation: He has the ability to teleport just about anywhere, but could use abit more practice to avoid getting lost (true story).

Dreemurr Beamers: Can only summon up to 3 at one time. Will increase as he becomes older.

STATE: Berlin reaches Critical Mass™. As in, both his blue flames and bone abilities reach Maximum Power™ and is also able to summon up to 10 or more Beamers at once. This level of power Berlin’s able to reach has something to do with Asriel. I’m not sure how (yet), but it does. However, as soon as he exits STATE, his body will go into a ‘forced shutdown’ and will enter an extremely deep slumber for up to 24 hours, depending on how long he was withing STATE. He cannot be woken up during this time, so in the event this happens, he must be kept someplace safe to sleep.

Dayne

Spears: His orange spears are strong, fast, and if he lands a direct hit, chances are you won't be getting back up. He can summon them to be anywhere from 3ft-8ft long, and they’re virtually unbreakable. He can throw them directly using his hands, or just send them flying without any assistance.

Orange Fire: He can wield it, but he’s not as skilled as Berlin. Additionally, his orange flames are weaker than his cousin’s and really only uses his flames to compliment his spears.

Green Fire: They’re similar to his orange fire, but is approximately 3x more destructive than his orange flames and require more energy to wield. But because Dayne is substantially more durable and physically capable than Berlin, wielding his Green Flames is hardly an issue for him. However, the strength of his green flames are equivalent to that of Berlin’s standard orange flames. These flames are also linked to his mother's soul color, which is green.

Orange Mode: Allows him to move at extremely high speeds, as well as being able to force others to do the same.

Physical Strength: Highly abnormal for someone his size and age, and it’ll only increase as he gets older. He can shatter large objects as dense as boulders, cinderblocks, and concrete walls with little effort, but only if he’s exerting the power necessary to do so. During practice or boxing matches, he suppresses this side of his brute strength and relies solely on pure skill and normal strength to win.

Semi-Aquatic: He’s a fantastic swimmer. Fast, sleek, and can breathe underwater for an unlimited amount of time (due to the gills he inherited from his mother).

Dreemurr Beamers: Unknown.

Eras

Bones: She’s highly competent with her bone powers, so much so that Berlin’s sometimes asking her for pointers on how to perform some of her bone tricks because her skills are truly impressive. Though sometimes, you’ll find her using her powers to scare him and Dayne into not acting like fools half the time. 

Blue Mode: Allows her to manipulate gravity and levitate objects. Can also use the Special Attack.

Weaponry: She can wield swords, knives, and other sharp objects. She sort of gained an attraction towards them after strangely being drawn to the toy knives in her toy kitchens and tea party sets when she was a toddler. And then really became interested when she watched her mother practicing with her sword one day (as leisure and a means to keep in shape, nothing more). And eventually, this sweet little daddy’s girl became a sweet little daddy’s girl that could put an armed, 10ft intruder in the hospital (in critical condition) with a pocket knife.

Dissociation: Because she’s half-ghost she can separate from her corporeal body, but only for up to 48hrs. She must return to her physical body (or any suitable, unused vessel she can find) before that time runs out, otherwise, she’ll disappear.

Fame and Fortune

Spider Control: Can control spiders of all kinds via invisible brainwaves they emit throughout their surroundings. However, these waves can only reach a radius of 500ft.

Purple Mode: Forces others to move only in a horizontal direction (either left or right).

Dissociation: The twins are also half-ghost, so they can separate from their corporal bodies and become ghosts, but only for up to 48hrs. They must return to their physical bodies (or any suitable, unused vessel they can find) before that time runs out, otherwise, they’ll disappear.

Retractable Limbs: Because they carry their mother’s gene for multiple limbs, they can grow or retract an extra set of 2 arms (left and right) underneath their first set. Think of Stitch from Lilo&Stitch.

Firearms: Since reaching the surface, their dad found little use for the boxier version of himself and had it (and all the explosive firearms built for it) safely stored away in a place on the farthest end of the mansion, well secluded and needing a passcode to enter. However, the twins one day discovered the lonely door while playing hide and seek. But since they had no clue how to open it, they thought nothing of it and it was eventually forgotten. Fastfoward a couple years later and they realized it needed a password, and after days of sneaking over to the door to try out passcodes, they finally guessed it: the date their parents got married. Since then, they’ve been sneaking inside to familiarize themselves with all their dad’s cool (and potentially dangerous) gadgets while managing to not blow a whole in the wall. And with their newly peaked interest, they decided to buy books on how to use and assemble various kinds of guns and other firearms (they’d love to have the real deal simply for show, but even spoiled children like them know not go anywhere near that subject).

Spider Pets: 

Muffet’s monsterpet (their name is Cinnamon in AT) had twins of their own (Sugar & Spice) who were introduced to Fame and Fortune on their 3rd birthdays, and the pairs bonded instantly. They were no bigger than the twins at the time, but grew as time went on. They’re very sweet and tame and wouldn’t hurt a fly. Unless the twins ask them to. Then they’ll hurt lots of flies. The twins can also summon them at anytime and from anywhere.

Sugar: Fortune’s monsterpet. 

Spice: Fame’s monsterpet.

Purrla

She may not have any magical abilities like her best friends do, but is a natural born gymnast (which is magical in and of itself tbh). She’s impressive, and all those flips and tricks you see gymnasts doing during the Olympics is what Purrla’s all about. Additionally, she has dangerously sharp claws that she’ll slip out if she feels threatened or is catching herself after a slip or fall.