in each city, the player must figure out what city Luigi is in and determine what artifact has been stolen and where it can be found. To figure these out, the player must talk to local people and ask them questions. Each city contains multiple tourist information centers as well as three stolen treasures, which are obtained by dispatching the Koopa who is carrying each one. In the version for Macintosh PC and MS-DOS the number of treasures that have to be retrieved from the Koopas in each city varies, ranging between three and five that need to be recovered and returned. The treasure must be taken to the correct tourist information center, where the attendant in charge of the center asks the player general questions about the artifact they are returning to ensure it is authentic. When the artifact is restored, a picture is taken of Luigi with the artifact and is placed into a photo album. The player must summon Yoshi to Luigi's current location so the dinosaur can eat a Pokey that is blocking the level exit leading back to Bowser's castle. After helping five cities recover their missing artifacts, Luigi faces one of Bowser's Koopaling kids blocking the way up to the next floor. After defeating all of them he defeats Bowser, stops his plan and rescues Mario. The ending differs between versions: The SNES version has Luigi send Bowser flying out of his castle with a cannon where he lands in the snow, freezes solid, and then breaks up into pieces, while the Macintosh and MS-DOS version has him attempt to attack Luigi before he can stop his plan, only for Luigi to avoid him and pull off his shell, leaving Bowser to slink away in embarrassment while Luigi retrieves the key to Mario's cell from the shell. Bowser returns and Luigi dupes him into looking for the key in the snow below, allowing Luigi to kick him over the wall into the snow below before then releasing Mario, reuniting with Yoshi and heading for home with Bowser's plan thwarted. Development and release To capitalize on educational games which were popular at the time, Nintendo partnered with Radical Entertainment to create an educational Mario game. Nintendo licensed the Mario characters but was otherwise not involved in the game's development nor was Mario creator Shigeru Miyamoto. The Software Toolworks released the game for MS-DOS in January