XMAS Lemmings Demo

XMAS Lemmings Demo cheat codes: 
Enter the password "SNOWFLAKES", and it will be in cheat mode.
When in the game, press 5 on the numeric keypad to advance
to next level with 100% saved.
You'll also get the password.  Another password: "VERSIONNUM"
gives the version number.  Try also the code "BILLANDTED".

Here are the level codes:
Flurry:
IJJLDLCCAD  NJLDLCADAQ  JLDLCINEAJ  LDLCAKLFAR  DLCIKLLGAK
LCANNLDHAI  CIOLLDLIAQ  CAJJMDLJAD  IKHMDLCKAL  MJOLHCELAD
JMDLCINMAS  MDLCAJLNAJ  DLCIJNMOAE  LCAOLMDPAQ  CINNMDLQAK
Blitz:
CAKHNNHBBS  IJHNNHCCBK  NHLFHBADBM  HLFHBINEBI  LFHBAJLFBO
FHBIJLLGBH  LCANNLFHBL  BINLLFHIBN  BAJHMFHJBP  IJHMFHBKBI
NJMFHBELBL  HMFHBINMBO  MFHBAJLNBK  FHBIJLMOBQ  LCANNMFPBE
BINLMFHQBG