Hotel Mario - Cheat Codes

Links:

Unlock All Hotels -- Warps -- Special Day Messages (English -- French)

Unlock All Hotels

Start a new game and lose all of your lives. On the Continue screen, select No and enter the following name in the High Scores screen:
B_ 
That B_ is followed by a single space, by the way.

The French version of Hotel Mario doesn't have the underscore available for names, so its equivalent code is:
B- 

After restarting Hotel Mario, restore this saved game and all Hotels will be unlocked for you.

Warps

There are two known warp pipes in Hotel Mario, accessed via entering a specific door on a specific stage. Doing this will play a cutscene of Mario tumbling through a pipe, then warp you to a specific hotel and stage. They are:

• Morton's Wood Door Hysteria Hotel Stage 6: Enter the rightmost door on the top floor to be warped to Stage 3 of Larry's Chillton Hotel.

• Larry's Chillton Hotel Stage 5: Enter the lone door on the top floor to be warped to Stage 8 of Wendy's Blitz Snarlton Hotel.

Special Day Messages

The Philips CD-i has an internal clock which Hotel Mario uses to replace the "HERE WE GO!"/"CHAUD DEVANT!" text with a date-specific message.
Most of these dates are actually based on ranges instead of appearing for one day only.

Both versions of the game - English and French - have unique messages.
This isn't a cheat code, technically, but I have nowhere else to put it.

English

French