I think here are the world each pup would use in buddyfight ( including Ryder but not Everest or Tracker ).

Ryder: Star Dragon World. Neo Dragons 

Chase: Hero World. Superheroes (Brave Machine?)

Marshall: Dungeon World. Adventures/Dungeon Enemy, mainly Adventures

Rocky: Katana World. Ninjas (Blade Beast)

Zuma: Legend World. Wydar Sarkal

Rubble: Legend World. Heroes

Myself: Dragon World. Thunder Knights. ( my name will be Carter ((original, I know) and my appearance will be in a black sweater that has a hood, jeans with a belt (which dark blue and black running shoes ).

Pups will be anthropomorphic. Dressed in normal clothing that has no significant drawback (for example, if they have to start running for their lives). NOTHING MATURE IS ASSOCIATED WITH THIS

Also when the pups use a item that can not be held by themselves it will just float and wait for commands, someone to King's Chastiful in 7DS

Also if you read any of my stories please comment. New items, monsters, or spells I will also explain here.
LP stands for Life Points,
G stands for gauge
HC stands for Hand Cards.