Look very closely at this picture and you'll see Mario stomping a Goomba. Those with a very keen sense of observation will notice that the white bubble contains a PEACE symbol! It's unlikely you'd ever notice this through playing Hotel Mario as it disappears in a split second but thanks to todays modern video capture technology (CD-i Emulator!) we can finally showcase this small piece of Mario trivia.
Hotel Mario is one of the CD-i games officially licensed by Nintendo. This was actually the only project developed by Philips themselves: The Philips Fantasy Factory in USA. They also produced Name that Tune CD-i, a USA exclusive. Hotel Mario was released in 1994 on CD-i.