* 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 (partially implemented)
* 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)
* Possibility to define auto-generation levels mode
* 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
* 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)
* ObjLF.Volume+ObjRF.Volume+obj.Volume if ObjLF and/or ObjRF doesn't exist?
* Display solution comments/timestamp
* VCR mode
* Command-line switch for batch export levels
* SQL
* Implement the GROUP column in the CLASSES table
* Allow multiple SQL statements in one binding
* Fonts/text
* More code pages
* Large fonts (possibly: width 8 or 16, height 8-32)
* Multibyte encodings (e.g. EUC-JP)
* 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
* Conversion from other games
* DOS Hero Hearts
* Berusky
* PC Wanderer
* Escape
* Chroma
* Xsok
* PuzzleScript (limited; not everything is or will be capable)
* Sokoban
* Puzzle Boy
* Pitman/Catrap