I'm currently in the process of removing all my stickers from pre-owned game right now.

While it looks horrible I actually find ones with overlapping labels like this are easier to peel off in one motion without tearing any.. All the extra labels make it more beefy allowing it to be a little more flexible when peeling off.

Just work on slowly peeling up a section of the bottom label with a fingernail or something. I use the back edge of an exacto knife mostly. The just peel up trying to stay uniform across the label as you do.. Slow and steady..

and then after that go to town on the adhesive spot with alcohol swabs or alcohol and q-tips.. I don't fucks with goo gone, it leaves a residue and alcohol almost instantly evaporates when done.

You can also insert a little cardboard slab and take out the cover art to make sure you don't damage the case/cover art.