An idea I've seen a few times-- and indeed wanted myself-- is to put Insaneintherain's covers into the games they come from. So, in celebration of the Year of Sinnoh, here you go!
(if you're unfamiliar, this needs to go into the mods folder, which you can find by clicking "Mod Management" on the title screen, then "Open Mods Folder". make sure you enable it too.)
All music used in this belongs to Mr. Insaneintherain, of course. https://drive.google.com/file/d/1gggGbemEmmsofd2_l51fJVH3ay5PtozX/view?usp=sharing