Images from the development of Unfinished Dream of All Living Ghost have been published at touhou-project.news/news/8892/. One of them features Reimu talking to Marisa, saying:
それって冗談じゃないの?
俄然、面白くなってきたわね!
If you search for this line, it doesn’t seem to appear anywhere in Reimu’s story. If you look at the ability card, you may think this line is from VS mode since in the released version, ver. 0.01a, Narumi’s card is not available in story mode, but only in VS mode. But if you look at the lives, it indicates the dialogue is before the battle, which is only possible in story mode. There is a place in Reimu’s story where both her and Marisa have the same facial expressions as in the development picture, but the dialogue line is completely different.
Besides these, the position of the portraits also seems to have been changed in ver. 0.01a.