The power-ups shown are Wolf Suit, Kitsune Flower, Octopus Suit, and Spider Suit.
Wolf Suit gives more power and speed.
Kitsune Flower has the same properties as the Fire Flower and Super Leaf (raccoon).
The Octopus Suit allows for smoother swimming, and the user can spin underwater.
The Spider Suit lets the user crawl on rough walls and webs.

And yes, I have Domino with the Kitsune Flower.
Oh, and me. Here, I have a wolf head, a human torso, dragon wings and feet, and fox tails.
...Yes, I know. I'm addicted to animal-headed humans.

...Also, I have six Strikers captains not from the Mario games!
There's Link (Legend of Zelda orchestral)...
Pikachu (Japanese festival)...
Kirby (xylophone)...
Fox (either Hispanic rap or techno metal)...
Samus (Metroid Prime music)...
...and Ness (Runaway Five music).
Yeah.

Plus, I have what I think Krystal would look like as a Krazoa warrior (borrowing the powers of Dinosaur Planet's six Krazoa Spirits).
Yeah.

Lava, Domino, Wolf Suit, Kitsune Flower, Octopus Suit, Spider Suit (c) UMS Productions
everything else (c) Nintendo