Seecret Friday 1 DO NOT READ UNLESS YOU WANT TO BE SPOILED

Seecret Friday 1. Thanks for the inspiration notch. 

Ok well its a secret so figure it out yourself.

For those of you who don't care:

Made enemies smarter after wave 5, they dash towards you every 15-20 seconds.

Removed the break wall upgrade.

Added upgrade dialogue.

Added pitch variation for shooting based on enemy health.

Expert mode?

Less dense maze!

Minor bugfixes and tweaks.