Most difficult levels in existence?

[quiznos00]

I suspect that, somewhere out there, someone has made a level in which Chip starts in the northwest corner and has to make his way to the exit square in the southeast corner. The entire grid appears empty, but most of the tiles are actually buried traps.

EricS1#85 (Virtual Unreality), which is funny because you just praised Yet Another Puzzle which is by the same creator