Dynamically-generated F1 key help screen based on current assignments

Message console showing last n messages (scrolls as needed)

Status bar shows armor/health/ammo in colors (e.g. red when < 25%)

Par times no longer printed on intermission screen if -file is used

Limit of 10 automap marks removed

Automap marks now saved and restored in savegames

Remove character-by-character delay during printing of intermission text

Taking a screenshot makes "tink" sound (since no message)

Improved hidden line setting to reduce spiderwebs in automap

Show teleporter specials on automap if Se bit not set

Showing keyed door colors and possibly (with cheats) keys in automap

Show secret sectors on automap (with single IDDT cheat)

Show opening doors as well as moving lifts on automap

Screenshots can go beyond DOOM99.PCX and do not print "Screenshot" msg.

ENDOOM credits printed at end of game (wasn't in linux port)

Secret count displayed as 100% if there are no secrets in level

Fixed help and credit screen sequences in Doom 1 & Ultimate Doom

Fix the automap showing regions beyond a closed door with different floor hgt

HUD displays top 4 frag counts instead of keys in Deathmatch

3 digit frag counter

Graphical keys in HUD display

Allow various HUD configurations including split 3-corner style

New font for HUD and other displays

Heads-up display (HUD) mode for health, armor, weapon, key and ammo indicators

Optional in-game secrets/items/monsters progress indicators on HUD

Customizable keys for heads-up display and for taking screenshots w/o -devparm

Automap continuously shows x, y and z coordinates

Automap colors configurable from DEFAULT.CFG