I just finished the game and I believe I collected all upgrades and collectables but when I look into the menu where all my items and abilities are listed it looks to me like I am still missing some as there are two spots that look like there should be some items placed?

In other words are there items that are not necessary to get to complete the game that I am missing? I'm not talking about the Power Seals but object that go directly in the Items category in the menu.