I did manage to cause an EXP Overflow crash when I forced Lv. 20. I'll try and pull the error message out if I do it again. Which I will ;)
oFire -- Choose target... The barrel explodes! The former human dies. You
Eadvance to level 20! <Enter> Game saved. Press <Enter> to exit.
$0044DDBF TPLAYER__ADDEXP, line 145 of dfplayer.pas those pesky bullets
$00464908 TBEING__KILL, line 975 of dfbeing.pas.
$004660F6 TBEING__APPLYDAMAGE, line 1213 of dfbeing.pas
$0046BDC6 TLEVEL__EXPLOSION, line 721 of dflevel.pas
$00421D3E LUA_LEV_EXPLOSION, line 664 of doomlua.pas
$000E54E1 (2)
$000E58A2nails(2) to unlock
$000E5AC12) to unlock
$00424E91 TDOOMLUA__CALLHOOK, line 1312 of doomlua.pas
$0046A9A2 TLEVEL__DAMAGETILE, line 512 of dflevel.pas
$00466658 TBEING__SENDMISSILE, line 1298 of dfbeing.pas
$00461E54 TBEING__FIRE, line 599 of dfbeing.pas
$00450883 TPLAYER__DOFIRE, line 676 of dfplayer.pas
$00451FA5 TPLAYER__AICONTROL, line 946 of dfplayer.pas
$00463935 TBEING__ACTION, line 818 of dfbeing.pas
$00463A95 TBEING__CALL, line 830 of dfbeing.pas
$0046CC9D TLEVEL__TICK, line 837 of dflevel.pas
Abnormal program termination! Please write down the above
to help get rid DoomRL of all those bugs! You only need
to write down the filenames and linenumbers.
Attempting to save game.... Press <Enter>
Shot a pistol to blow up a barrel, killed two Former Humans and a Chaingunner. 0.9.8.10