Dr. Katz had built you a teleporter.With that you are able to teleport anywhere you want!Including that trip to Paris (which is expensive).But Dr. Katz accidentally sent you to Mercury!Uh oh!The Sun's rays are very hot,and somehow you are able to breath on Mercury.
But after finding a couple of Mertians (like Martians) they plan on destoying you! Dr. Katz was able to teleport you the escape pod,and you must get there.Or else the Sun's rays and/or the Mertians will kill you!