Replacing Labels
Sometimes labels on these games have had been pulled off or drawn on. Soak the label with rubbing alcohol and let it sit for a few minutes
Again, use your finger nail or something plastic to remove the old label. Don't use anything metal in case you scratch the game plastics.
Once all the old label is removed and sticker resin is gone you can prepare for the new label.
Head to the game image section of this website and find the image for the game you are replacing. Print off the label on the sticker paper.
Cut out the label and test fit it on the game. Trim the edges until it fits, and apply it to the game.