* Sound effects
  * Wave sounds
    * Standard sounds
    * User sounds
  * MML sounds
  * Numeric sounds (?)
* Game engine features
  * Multiple connected objects moving as a unit
  * Bizarro world
  * Figure out why the $SeekerCloser class doesn't seem to work properly
* Editor
  * Mouse dragging
  * Level index editor
  * Bizarro world
* Table of contents for levels
  * Can define your own columns
  * Can do SQL queries on them

