Metal Warriors in SFC-case

[ChronoMoogle]

So... a few days ago I got this strange but interesting cartridge from a seller in Holland.

metal warriors sfc.JPG (95.78 KiB) 5978 mal betrachtet

He stated that he got it from Japan, which is likely since the case is a replacement case with "SFC" (short for the japanese Super Famicom) engraved where normally the backsticker is placed on a usual retail-cartridge. I opened the cartridge to check if the pcb is a custom soldered repro or not and something similar to the Star Fox competition-cartridges surprised me.

DSCI0196.JPG (932.47 KiB) 5976 mal betrachtet

Now I would like to know something... Is this a bootleg or a original PCB like the ones inside of the retail release-cartridges?

[d4s]

This is about as fake as it gets.
Label doesn't fit, cartridge shell is obviously not original and the pcb quality is far below anything Nintendo ever issued.
Nice find nevertheless, I'm a sucker for weird pirate goods!

[edit]
Glob-tops were actually pretty common with pirated cartridges back then, see here and here.