hi im pohtayhtoguy 2, also this was made for alpha 1.5, so future ppl it mite not work for you

Items you will need: fire extinguisher, grapple hook and also the code to the door across from the fire room.

First, use the fire extinguisher to push the crowbar as close to the conveyor's ramp as you can.

Second:head to the conveyor in the code room, on the low part. Then try to use the grappling hook to grab the crowbar.

Third: success or unluckiness.

You can get a lock and the corresponding key to lock yourself in the code room while doing step 2. You can also do this without the key and take the boards off of the high part of the conveyor.