It seems like very poor conduct to be late to one's own duel.  I mean, he was the who challenged me in the first- *WONG*

I arrive at the location the directions lead to.  There is a hatch above that appears to be where trash is collected and dumped in from above.  The walls and floor look worn and greatly used.  Evidently, mounting a constant demonic invasion is a very wasteful endeavor.

I open the envelope.  Inside is a note, it reads: "Dear Intruder,    If you are reading this, then I need to try harder.  Thus, I hearby challenge you to a duel. Meet me at the WASTE DISPOSAL wing at 0100 hours.  Do Not Be Late.                            M.-" It then proceeds to give directions to the WASTE DISPOSAL wing from this location. 0100 is approaching according to my internal clock, though it may have been effected by Onigashima's phasing during the 100 years I've been trapped here.  Should I accept or decline such a challenge? >Accepting will allow a quick travel to the meeting point.  Declining will allow further exploration of this area.<

Given the simple set up of the trap, it shouldn't be to difficult. ENVELOPE obtained

Initial analysis confirms that the string is attached to some manner of triggering device embedded in the ceiling.  The "bait" appears to be some manner of envelope attached with a simple hook.

I advance further into PROCESSING.  Passing through a few uneventful corridors, the path begins to lead me down.  There appears to be an object hanging from the ceiling.

The platforms appear to be attached to a vertical belt.  They are currently retracted into a housing in the back wall to accommodate the conveyor belt above me and not active.  The conveyor above looks like it can retract into the platform up there, there must be a control for that somewhere nearby.  I am capable of jumping roughly my own height without teleporting, however, I am incapable of the WALL JUMP technique.  Conserving my POWERCELL does, indeed, seem like a logical idea.   Perhaps somewhere I could find some manner of equipment to aid in vertical ascent without the use of my TELEPORTER PACK.  My body is designed to utilize the Demon weapons and technology in the event our mission should run into... complications.

I head further into PROCESSING.  The corridor opens up into a much larger room.  The power is functioning here and the room is alive with the whir of mechanical devices.

Indeed, it does appear to be some sort of mine, a directional one, like a Claymore.  It's pointed toward the other opening, so it should be safe to approach it from this side.  There's a trip wire strung across the opening from the other hatch.  It would appear someone was anticipating me attempting to cross the gap via the passageway.

It appears to be much larger than just an air duct.  Perhaps a secret passage for crossing the gap in the event the catwalk is rendered unusable.

The conveyor belt goes off into that large metal door.  I assume it leads to PROCESSING. I head back down the shaft and continue toward PROCESSING.  It appears that there used to be a catwalk here.  There are a pair of levers on the wall.  One is up and the other is down.

I leave the RECHARGE CHAMBER.  Oddly, the factory room still has power, and is actually more active than it was previously.  The conveyor belt is in motion.

Which fight? I decide to check up on the Tanuki.  I contact her via text, as ideally she is acting in stealth, and would likely not be able to communicate verbally. “Tanuki, what is your status?” "Snking in airvent serchan pwr stn fr PDA" “Your typing is atrocious.”

Momotaro Sensei is a great warrior.  Before being assigned to our squad, Inu, Yamazaru, and Kiji could not get along.  It was difficult to make it through even the simplest tasks with the three of them at eachother's throats.  Momotaro Sensei stepped forth, volunteering to take our unit under his wing and taught my former comrades the true meaning of teamwork and friendship.  They remembered his teachings to the very end...  His sword seems at first glance like an ordinary blade, but in his hands he was able to slay the most fearsome and invincible beast with only a few swings.  I still do not know how he was capable of accomplishing these feats, but I hope to one day make him proud and follow in his footsteps. Is there anything else I should do in this room before advancing?

I look around the room. Nothing seems out of order, except for the severed wires, and the sword dug into the floor. The Sword appears to be... Momotaro Sensei's?

I do not detect any traps in the vicinity.  I step into the RECHARGE CHAMBER and activate it.  The chamber closes around me.  A warm light floods the cylinder and a loud hum fills the room. *FZZZZT* That did not sound good...

I advance further into the factory. I come upon another door, larger than the previous one. Inside would appear to be a RECHARGE CHAMBER. Oddly, the devices in this room still seem to be functioning, unlike on the factory floor.