Use a dedicated template or software like Photoshop to ensure the spine and logos line up correctly before printing. WWE 2K15 Cover template by DisturbedShifty on DeviantArt
Use glossy or semi-gloss photo paper (roughly 120-150gsm). Users often recommend "magazine-quality" HP-branded paper to match official retail covers. WWE 2K15 [Region Free][ISO]
Websites like CAWs.ws and Reddit host long-running threads where users share high-resolution printable files. Printing Recommendations To get a professional look that fits standard game cases: Use a dedicated template or software like Photoshop
If you are looking for printable cover art ("paper") for a backup, you can find official and custom designs to print and insert into your game case. Printable Cover Art & Templates WWE 2K15 [Region Free][ISO]