Within The Pipes

You fell into a part of the sewer system you weren't supposed to know about. The area you're traversing is constantly changing, trying to stop you from escaping. Get out to the top before you're eaten.

Controls: WASD or arrow keys to move, space to jump, esc to pause, click or X to activate high-power flashlight mode to scare away monsters.

Credits: Music by my friend, everything else by me.

Note that this is highly unfinished, and some things may be broken! I just want to know what people think of this concept of a game that changes while you play it, and whether it seems interesting or not.