What: “...so large” bronze trophy
When: During Year Four (End of the Line)
Where: End of the Line, Trolley Repair Workshop
When you first enter the End of the Line temple, your poor buddy Glottis faints and falls down the stairs. When you first scale down the stairs, head further to the right rather than heading down the rest of the stairs to enter the Gremlins' workshop. Glottis was rescued by these little demons, who seem to be worshipping him. Talk to them and inquire into Glottis's condition and what you could do to help.
This trophy is missable if you don't try to talk to the Gremlins as much as you can. They do hint at the way you can solve the current dilemma at the End of the Line, but it is again an obscure hint.