* Sound effects
  * Wave sounds
    * Standard sounds
    * User sounds
    * Compressed wave sounds (?)
  * MML sounds
  * Numeric sounds (?)
* Game engine features
  * Multiple connected objects moving as a unit
  * String data
  * A ,PopUp command to use a popup with arguments starting from a mark
  * "Goto message" instruction (?)
  * Returning a class from COLLIDE/COLLIDEBY to transform
  * Coordinate input (may be suitable for some kind of games)
* Editor
  * Mouse dragging
  * Level index editor
* Table of contents for levels
  * Can define your own columns
  * User can write SQL queries on them
* Deal better with allowing to skip past corrupted levels
* Picture editor/loading
  * Allowing more altimages
  * Spare page (for temporary use while editing)
  * Batch insert multiple dependent image lumps
* Puzzle set catalog format (using with internet; a separate program)
* Inventory/replay hybrid view
* Bookmarks
* Message trace menu to enable/disable
* Bugs
  * Figure out why the $SeekerCloser class doesn't seem to work properly
  * Level 232 of SUPERHRO puzzle set (the Lava shouldn't expand? why?)
  * Animation stopping unexpectedly (until a key is pushed)
* Display solution comments/timestamp
* VCR mode
* Command-line switch for batch import/export levels
* SQL
  * Implement the GROUP column in the CLASSES table
  * Allow multiple SQL statements in one binding
* Large fonts (width 8 or 16, height 8-32)
* Branching replay recording
* Slow movement displaying state between triggers
* Warning if file changed when uncommited data exists in the cache database
* Composite puzzle set format (implemented)
  * Optional hypertext help
  * Compressed class definitions (?)
* Option to auto display level titles
* Testing
  * Bizarro world
  * Deferred movement
  * Sweep, SweepEx, HitMe
  * Overriding order of execution
