Not very impressive now but I am just beginning. Aside from ASL on PS4 and Gunhound EX all of this was acquired this year. I still need to get the Model Kit and Target Earth but as said before no plans to get Valken 2 on PS1 as it's a Strategy game and not what I want from this series. I do hope we get more out of this series but honestly, it's a miracle we even got the ASL remake. As to why Gunhound EX is there. It's essentially an AS series successor and those developers went to make ASL on PS4.
Not my absolute favorite series of all time or anything but quickly has become one of my favorites which I have plenty of. Ys is still number 1.