There are still a few snacks left that aren't in the chart, although I'm not sure if this list is completely conclusive to every single snack (as, if I recall correctly, not every single snack is in the gallery;) due to the page title. It's not too large or urgent of an issue, just wanted to notify you all.
- Page editor anon
All of the in-game snacks can be found at https://yume2kki.fandom.com/wiki/Vending_Machine/Snacks. What you're seeing is the page for specifically the ones in Snack Gallery. -sora