You are shopping at your favorite supermarket, and as you leave, you feel like something is happening, and you turn to look at the sky by chance, and you don't have time to think because you are quickly grabbed by a tentacle, taking you up and to a portal...

You don't see anything, and all you can see is a selection of creatures in front of you... You have been chosen to be an existing creature or created by yourself in Trevor Henderson's world, good luck.

(You can do things like, create new monsters, be an existing monster, change their genders, for example make Cartoon Cat a woman instead of a man, and everything else you need.)