The Whirlie Fizzlebot spawns in a very small room just before the teleporter to the 3rd floor of the guardian, where the mobs start to get harder and drop platinum stabilizers. Most of the time I was able to invis directly to Whirlie's room, although periodically steamworks and coils on the lower level will see invis. If you just follow the path to the 2nd teleporting device (where the Guardian Expediator Mark II will drop you) the Whirlie's room is just before that. Backtrack from the teleporter through one hallway and turn right into a narrow corridor with 2 static mobs and possibly a wanderer around that leads to a tiny dead end room. The whirlie spawns in this tiny room. When you enter the tiny room, if the Whirlie isn't up there will often be a steamwork standing static in the room, alone as the placeholder. A few times when I came to this camp, the placeholder seemed to be missing when we first showed up, but would spawn after clearing the area in the hallway and room leading up to the Whirlie's room. So if left alone, the Whirlie/PH might wander but doesn't seem to go far. Just like the rest of the zone the whirlie/ph spawns about every 19 minutes, and he doesn't seem to be that rare. Killed him 4 times total, the first 3 dropping the Propellor Shaft and finally on the 4th kill, the Strong Propellor Drive Belt.
Edited, Aug 5th 2010 12:19am by Xyroff