Here's the concept to the bubble guppies and skylanders crossover: the skylanders landed in there world after the final battle with Kaos, whichhappenedin the first game, and the others, and they need their help because the evil came with them two, but they can't fight the evil do to them being small toy size, so that is where the guppies come in, cause they were give portal wrist, and they activate if you place a skylander on it, you bond with the skylander and its power, as well as looking like them, but it's a suit, and each guppies is stronger with the element of the first skylander they choose, and is there partner.
Like this.
Molly's partner is spyro (magic)
Gil's partner is gil grunt (water)
Goby's partner is terrafin (earth)
Deema's partner is eruptor (fire)
Ooma's partner is Whirlwind (air)
Nonny's partner is trigger happy (tech)
Zooli's partner is stealth elf (life)
And an oc character I named Peter, who is a typical goth boy
And Peter's partner is chop chop (undead)
and of course they have to keep it a secret and hide their skylander partner from everyone else, like other superhero stories.
And to stop Kaos from taking over there world, as well as finding the other skylanders from the first game.