Oh no, the foily ones, 😱 and they're right on the game's sticker? I use Starter Fluid to dissolve adhesive, but if they aren't paper stickers it won't soak in and break the adhesive down.
The best you can do is peel a corner of it up (always pull towards the edge of the game sticker), and solventize the underside of the rental sticker to ease it off.