Have no idea how the Blod works in BlobLand, if I go in with my active pet, will he transform? How do I use it? Yes, I am THAT doof-ish!
You can either create a new pet ("scoop some new gloop") or select to change an existing pet. If you pick the latter option, you'll get to choose the pet you want to change from a list (it doesn't automatically select your active pet).
Oh, and if you morph an existing pet, the blob will be the same color as the original pet (if blobs are available in that color). I just changed a cream illumis into a creamy blob ^^