If you find the item limit in Paper Mario: The Thousand-Year Door on Switch to be too miniscule, you may be horrified to learn that it was smaller in the GameCube version. While you can fit 15 gewgaws in your pockets on Switch, it was 10 on GameCube. Either way, it isn’t a lot, and you may feel as though it’s difficult to manage your offense and healing items in such limited space.
Thankfully, there’s a way to expand this. It isn’t too difficult, but it is time-consuming.
With that in mind, I’d like to point out that you can access a storage box at every item shop. You can store away whatever doesn’t fit in your pockets and go back for it when it’s needed. I get it, though. Traipsing back and forth to the item shop to pull out your banked items is annoying, so let’s talk about expanding those pockets.
In order to expand your inventory limit and carry more items in Paper Mario: The Thousand-Year Door, you need to reach floor 50 in the Pit of 100 Trials and get the Strange Sack. The Pit of 100 Trials can be found underneath Rogueport to the left of the Star Chamber. You have to use your paper airplane ability to get there. There are detours available, but they mostly require you to break giant blocks with your mallet.
The Pit of 100 Trials has you taking on one group of foes each floor you descend. You can only quit every 10th floor, and each time you start, you do it from the very top. So, to get to the 50th floor, you need to do it in a single run. The enemies that inhabit those floors don’t get too terrifying, but the time it takes to get to level 50 can be a pain. I was able to make it to level 50 just before the end of Chapter 3, but It can take over an hour to make it that far.
Once you have the Strange Sack, your inventory is doubled. You can now hold 20 items, which is also the maximum of the GameCube version. This means that, while you start with more space in your pockets on Switch, the Strange Sack will only bring you to parity. Considering items can’t stack, that’s still not a lot, but it should get you through.