Hide and seek Trophy in Radio Squid
Hide and seek
Wrap around the side of the stage 10 times.
How to unlock Hide and seek
Each stage is made up of multiple rooms, most of which will have several openings. Not all of these openings are destinations. Most of these actually wrap around, meaning that for example, going through an opening on the right-hand side might have you coming into the screen from the left-hand side opening. Do that 10 times and you'll get this trophy. It doesn't have to be ten different paths; you can use the same exact path 10 times in a row and the trophy will still pop.