Cliché to say, but I'm sad to see this go to the scrapyard - except for you Zaturn... maybe? (Hopeful and curious to see it at a new park) For all its debatable merits in terms of actual ride enjoyment, Space World had a fair share of quirky and even unique rides, in pure Japanese fashion. The only Asian Arrow hyper and especially the first ever Maurer coaster weren't exactly topping my bucket list, but they definitely would have been a nice cred to get for Hipster bragging rights.
The bigger picture of Japanese economic stagnation is again showing, with yet another small to mid-size quirky park closing for good...