Found on a japanese fansite, although I forgot the author and the site itself.

A japanese ad for the famicom game.

The back of the official soundtrack for the game.

A Soul Blader Japanese phone collector's card, by Enix.

A picture of the Japanese Famicom Soul Blader game box.

The cover of the official japanese Soul Blader CD soundtrack.

An odd-looking screencap from a japanese TV promo of the then-upcoming Gaia Gensouki game for the famicom system.

Found on a japanese fanpage. It's advertising the game.

This is the only picture i've managed to find of this item. Apparently, it was included as an Omake [extra] in a japanese gaming magazine. I haven't been able to find it anywhere [including Yahoo Japan Auctions, Ebay, etc.] Which makes it super rare.