Fast Cuts Trophy
Finish Sharp mode in Under 5 Minutes.
This, for me, is the hardest trophy in the game and it's only a silver! Speed and luck will play a huge part in gaining this trophy. Additionally, any leftover quad blocks must be dealt with speedily otherwise your lives will take a hit and you'll end with a game over. Perfect quads are favourable here but the tight time limit means you don't have a great deal of choice in where you dump pieces. I'd recommend finding a stage with pieces and a grid you're comfortable with and play it repeatedly until you have mastered how the blocks fit together. This will take a lot of time, patience, and effort, but with luck, you should earn this one eventually. Be prepared to pull your hair out when you come close and think about padding the walls of your room to protect controllers flung in anger and frustration.
See this YouTube video for an idea of just how skilled you'll need to be to earn this trophy. Good luck - you'll need it!