Mario is Missing article in Nintendo Power Magazine vol. 50,
Published in the July 1993 edition this article introduces us to the latest genre to feature Super Mario - the dreaded horrors that are Edutainment.
More than the facts - Mario is Missing has excellent graphics depicting many famous statues, buildings and art from around the world. Most of the game is exploring. Whatever you do, don't confuse this with an action game like Super Mario World. The action is extremely limited. (at least they were honest)
Remember you can zoom in with CTRL + Mousewheel up and you can zoom out with CTRL + Mousewheel down if you can't read anything.