Well heroes, you've managed to find your way back to KeyGlyph's domain despite her lair's unlisted address -- and this time you're demanding a faceoff! Our resident boss may not understand exactly what you're trying to prove, but she does think she sees a spark in your soul that could amplify your powers to legendary proportions... if they're pushed to the limit. Will she help you unlock some incredible new ability, or will she just smash you into a smoking crater for the game over? There's only one way to find out. Equip your best gear, look deep inside your heart, and face your KBOS destiny!

DISCLAIMER: The opening includes a minor swear. Make sure your kids understand final bosses aren't good role models.