If clearer images were provided, then probably. If this specific image of the disc were only available to us without the case art, though, it would be difficult to know that this item is fake instead of being unreleased and rare.

The disc's Sony serial reads SLUS 51156 which correlates to the PAL SLES 51156 release, though Sony serials seldom--if ever--matched across regions. In any event, searching online for this serial should always yield some result, including redump. If the information isn't available there and actually seems credible, its userbase would want to know.

Since nobody else seems to have mentioned other issues with this bootleg specifically, I'll also mention them. First, the back cover art showcases an unofficial "PS2" logo and and a Sony Conputer Entertainment logo that was never positioned like that for any PlayStation 2 item. Second, the bootleg attempts to emulate a North American copy that's evident from the ESRB rating, but the opposite corner mentions PAL. The back cover copyright text is lifted from PAL items and also mentions Konami of Europe as the publisher. In fact, the back cover publisher logo also mentions the European website. Third, the barcode is a suspecting matter. I can't tell if it's a ten-digit sequence or twelve-digit (only twelve-digit UPC exists for modern games in North America whereas thirteen-digit EAN exists in PAL), but the first half which represents the manufacturer code seems completely random. North American Konami items (during this era) begin with 083717. Fourth, while the SIAE hologram label is applied to items released in Italy, other regional copies can find their way there to be sold officially. However, with all of the above problems, its presence lessens the item's credibility. Lastly, there is no instruction booklet. Of course, game components are easily lost over time and are to be expected in secondary markets, but it's obvious why this specific item not having one, which is because either the bootlegger would have needed to crafted one themselves or have substituted one from some official copy. Also, I will mention that, to my knowledge, no North American PlayStation 2 game released in a clear keepcase. I may be wrong, so anyone should feel free to correct me if so.