I checked the newest installment of this yesterday and it's pretty cool. This one has many obscure characters in it, including both Deathshead 1&2. Deathshead 1 had a particularly interesting entry. It talks about his adventures in the Marvel TF universe. It actually names five specific transformers, Rodimus Prime, Galvatron, Scourge, Cyclonus, and Unicron. The Marvel TF universe also officially has a designation now. It is (if I remember correctly) universe 127102. I'd have to guess Marvel is on good terms with Hasbro and IDW and were given permission to use the names. Oh, and he also aparently had a run in with Dr. Who.