Friday Night Funkin Undertale
In search of new opponents, BF has accidentally fallen into the Underworld. He needs to master the toughest dwellers to get out of the dungeon.
The game imagines how the characters would sing if they could. And they sound epic! Papyrus, Asgore, Sans, and others preserved their vocals and traits flawlessly.
The beatbox of Photoshop Flowey keeps the level of the original boss fight. Flex to the low cave tracks (presumably remixed by Napstablook) and win peacefully.