First up, put the game on medium difficulty, then select any puzzle you like the look of. Your objective is to put the picture back together. To make all of the trophies pop at once, you need the space to be either in the top right or the bottom left corner, if the tile space is in a different location, exit and restart. The tile space always appears in one of the 4 corners so you have a 50/50 chance.
Once the tile space is in the right place, press the following buttons on the D-PAD: If the tile space is in the top right, input: Right, Right, Up, Right, Up, Left, Up, Left, Left, Up, Right, Down, Down, Right, Right, Up, Left, Up, Left, Up, Left, Down, Down, Down, Right, Down, Up, Left, Up, Left, Down, Right, Down, Left, Up, Up, Up, Right, Right, Right,
If the tile space is in the bottom left, input: Down, Down, Down, Left, Up, Left, Up, Up, Right, Down, Down, Down, Left, Up, Up, Up, Right, Right, Down, Down, Left, Left, Left, Up, Right, Right, Right, Down, Down, Left, Left, Left, Up, Up, Up, Right, Right, Right.
And that’s it, providing you completed the puzzle with the required inputs you’ll complete the puzzle, unlocking your Platinum Trophy in less than 5 minutes.