Maybe there was a 'Dragon Ball Z' and 'Sailor Moon' lookalike convention happening in Vegas at the same time that "Dynamite Bacon Buttie" visited. You can't help but think the talents of a very good pixel artist were being wasted on this game; hopefully it was a proving ground for them to go onto far better projects. With no credits in the game we may never know who did the art work, but where ever they are, I hope they are proud.
To import games from Japan, eBay isn't your only option. I always check on sites like Solaris Japan as often they have a game in stock cheaper than the final price it goes for on eBay. The also have a few gadget that removes any worry of getting charged extra at customs, so they're worth a look.