I was just thinking about Transfarring the other day. I don’t even remember what it was supposed to do or be, but it’s still in my head however many years later. I agree with your 10/10 verdict.
I am going to review a few video game portmanteaus I found on this list. (There are only a few more to be had. This list is carefully curated.)
Banjo Tooie - A sequel title that’s shorter than the original. Impressive. Better than the alternative, Banjo Katooie. 8/10
Wario - He’s Mario, but bad, and upside down, and he goes “Wah!” 10/10