The DOS version also has a Taxi feature, in which Luigi collects little Taxi tokens around the city and then exchanges them for rides across town.
The red plumber himself even manages to phone Luigi, giving him advice on his journey as well as updates on his capture and the Koopas' struggle to maintain their plot as planned. The mayor of the city also phones Luigi when he arrives, asking for his help in stopping the Koopas he later phones when Luigi secures the city, thanking him and wishing him luck in finding Mario. The DOS version adds a videophone aspect to gameplay, and Luigi must call the help number provided at the landmarks to get in touch with his friends, answer the questions, return the artifact, and receive a monetary reward. In the SNES version, all the information kiosks are manned by women resembling Princess Daisy (complete with crown), although this is an unconfirmed appearance. He must answer trivia questions about the landmarks before the curators will take the wares back. Luigi must jump on the Koopa Troopas to defeat them and reclaim the artifacts, which he then takes back to the landmarks they were stolen from. In each level, Luigi must retrieve several artifacts which were stolen by several Koopa Troopas within the city and return them to their rightful places. It was sent to the show by Kathryn DeRoos. There are also versions of the game on NES and DOS. Mario is Missing! is an SNES game played by Danny and Arin as a one-off on Game Grumps.
