Just wondering as me and my friend would like to help each other out with getting them with 2 Player mode.

it doesnt look like it, i connected 2 controls and started a trophy challenge but only 1 player turned up :( might have to give it another go, but i loved playing it co-op and woulda liked to get the trophies co-op aswell...

I had the most fun on it with a friend. That's when it the challenge was good and not just you requiring to find videos on youtube on how to beat something.

I think it is single player, there's no option to change to 2 player. God, the challenges can get quite annoying sometimes

pretty sure single player challenges only, too bad

You can receive the hidden trophies in the single- or two player campaign but the others requires you playing the Trophy Challenge.