Ever since
Record of Agarest War broke new ground with its incredibly perverted bonuses, pillowcases have become a staple of "no one is going to buy this limited edition" limited-edition releases of US copies of Japanese games. The other big example I can think of is
Catherine's "Love is Over" edition, which included a pillowcase, a T-shirt, and boxers (which,
as LD commented, have no fly).
(For the record, I bought
Otomedius Excellent because it's the newest
Gradius game, and I would've preferred a proper
Gradius VI over it. It's still fun, though.)
(No comments on the facial hair? I haven't even been meaning to grow it out, but lately I just don't have time to shave. I'm just glad it stays on my chin and doesn't move down to my neck.)