Never saying the whangdoodle.
At least we get full art of the main cast (sans Newton and Mitt) even if the scans provided are low-res and high contrast. The cover is terrible, with random characters unrelated to anyone from the game and Shui Hu's monsters rather than Shi Kong's. I'd say it's a bit on the ironic side due to the "Shi Kong Xing Shou +: Future and Past" idea of mine.
You sure there was never a cardboard box release of this one? I have some Waixing GB games in cardboard boxes, but never really tried collecting all the GB Waixing games...
It could've gotten a cardboard box, but I don't know. All the boxed Waxing games I've seen and own (save for one of Gowin's Stone Age) were in plastic clamshell boxes.
Maybe the plastic case versions are / were reprints?