On the other hand, the very idea of "Save" is that the game is "Saved". That is, it cannot be destroyed. If you lose a life, you don't die permanently. (There are a few notable exceptions. NetHack, for instance. But only evil, sadistic people do that. I shouldn't have said that.)
>Pick it up. What a novel idea. Anyway, the laser seems to work a lot like one of those toy space phaser thingies, only it's real. And it's not yellow and purple. Just pull the trigger to create a beam of extremely powerful light that you probably shouldn't pass your hand through.
>Go back down the cave the other way, use the laser on the trap door. You zap yourself back to the other side with the transdimensional interlocator thingy, then you climb up the ladder, and cut the trap door open with the laser. You see nothing but darkness beyond the trap door, but that's probably not going to stop you from going through it.