If you want to open the briefcase in Grounded 2, you need the briefcase code, a two-part set of numbers that pops the lid and lets you explore inside. There’s not all that much to see, but there is one very useful item inside to help you on your way. You can also enter the briefcase code without finding it in the game, which is handy, since half of the code is at the park’s far end. Below, we list the briefcase code in Grounded 2, where to find …