It includes a bunch of extra games including the real version of Sagaia Ver 2 which based on what I read is so rare that this is the first time it’s been fully dumped, I’m happy with it. 
Edit: Also want to say while I certainly don’t begrudge folks for complaining about how this Collection has been handled by SE and Taito, it is what it is and I’m glad I had the foresight to do a little rebudgeting for last month to be able to get the special edition collection at its retail price and enjoy all the fun extras AND more importantly play definitive editions of these amazing games in high quality presentation which was far more desirable than getttng gouged by resellers later and feeling regret over not pulling the trigger sooner. Here’s hoping SE changes their minds and releases it digitally or gives the full collection of 9 titles a U.S. release but paying more unfortunately often comes with the territory of being a dedicated shmup fan and I wasn’t gonna give them the benefit of the doubt and miss out.
I also want to say that seeing such an incredible collection on the Switch is amazing. If you would have told me in the GC, Wii and Wii U eras that someday Nintendo would have a console loaded with AAA classic shmups, weekly Neo Geo game releases and various other arcade titles I would never have believed it.
