Hey. I’m bored. There are 14 total Mega Pokémon in this new update, which is close to finished. Raichus are the first two.
Hoopa:
Mega Hoopa is a mess. It’s the Hoopa unbound form. Its tail is removed and goes through a portal. The Hair is removed and replaced by a portal connected to its head leaking rainbow energy in the Hair shape. Horns curve under chin like a second beard. An arm grows through a portal in her chest.

Xerneas: All black replaced with white. Gains weight. The antlers are pink, they face up and down. There are crystals all over the body. Very fancy. Has a blue ellipse on her head.

Yveltal: The talons disappear and the hair smoke becomes a cape. The wings become slim, with giant claws. The tail splits several times. Very spiky. Has a red triangle on hishead.

Aegislash: Very long sword. Sword arms. A large shield on the hilt of the big sword with smaller shields on swords.

Gogoat: The body is very bulky. The neck leaves become very bushy and cover down to its legs, like a very oversized saddle. Leaves cover its head like a helmet. Antlers come down like handles.

Clawitzer: Type changes to Water Dragon. Clawitzer is engulfed by the gun mouth, which becomes very big and long and gets too many fangs. Its tail pokes out of the end.

Ceruledge: Elf ears become very long with flames at the end. The head is covered by flames, only eyes are visible. Sword flames cover the arms and legs.

Armarogue: The Elf ears also become very long with flames at the end. Same situation on the rest of the head. No arms, instead there is a giant flaming cannon on its chest. Legs are black with fire balls.

Dudunsparce: It is very long. Sorry.

Indeedee: Think mega Audino but purple.

Crabominable: One arm grows way larger than the other. Hair turns into an icicle and its legs become very long. The short arm is very spiky. It looks like it has breasts.

The final one is in the replies. Feel free to ask questions, I will answer them the best I can.