Do we have to use a specific version of the game? Or is it just always use the most recent one?

I think we should have separate subcategories for each version.

are there any version differences that affect the gameplay? I haven't played on the update

There are two versions, the 1.0 and 1.0.1, and the only differences I found were removal/addition of some spike blades. So that would affect gameplay. You can set up subcategories in each category for both of the versions like how the undertale page here does it. Btw both of mine are 1.0.1 runs.

So how about we add subcategories for the V1.0.0 and V1.0.0?

no