You’ve fallen into your mum’s basement, and it’s obvious that the only way out is down. Standing in your way are enemies, treasures, bombs and secrets. Here’s the clever bit:
-There are flies and maggots and other annoyances, but every important enemy is a mutated distortion of your avatar. Some are identical, some abstract twists on your most basic shapes. According to the fiction, they’re your brothers.
-As you pick up power-ups, you become more mutated yourself; growing an extra head, a third eye, bulging flesh. The further down you go, the more powerful and twisted you get.
-The final boss is your mum.