In my opinion there is a lot of potential in store for this game in particular if it's ever fully fleshed out. I for one was more so fighting with the jumping in order to try and collect them all, but felt there were areas that hid some. One of the things I will say that could really help out when is being able to tell when you've received all the moths in an area for completion purposes. I was able to collect at least 60 out of 65 of the moths before reaching the end by accident.
So I spent about an hour playing this and personally my biggest concern at times is the jumping and usually collision.