GameInformer writes: "Diabolical Box sticks with the first game's formula almost exactly. While it may not be a fresh concept, more story and puzzles are all the Layton series needs to appease fans.
The plot follows Luke and Layton as they investigate the death of Layton's mentor, supposedly caused by opening the legendarily dangerous Elysian Box. Clues guide them to hitch a ride on the Molentary Express and travel from town to town. This structure allows for much more environment variety than the single city backdrop of the first game, though the on-train sections become tedious once you've gone back and forth a few times."