Are 100% of the original game scenes present in this VN?
Nah this is a very poor fan remake, not a reconstruction.
All renders are made from scratch. The "story" vastly differs. The gameplay is just endless grinding in the shop to get money, and repeating the exact same scenes hundreds of times. Eventually you need to skip entire weeks to progress, each day are five clicks while tapping CTRL to speed up. Your only actual task it to open the questlog after each action to check if any instructions changed there.
The newer content (where this game entirely diverges from the original) is incoherent and non-sensical. The mother gets drunk with the aunt, and while making out with the son, suddenly sobers up and turns into a mindless bimbo. After grinding a few more weeks, they have consensual sober sex, and we're back to the standard pseudo-incest VN which has nothing to do with the original Bobby game. There are no actual choices or paths, at least not right now.
Most annoying is probably the very early occuring bug, where events take place in rooms which are not indicated by the usual portrait circle. Well, besides all the "game overs" which happen whenever the game lets you make an actual choice.
The Sandbox tag probably shouldn't be there, because the game lacks any kind of freedom of choice a Sandbox game needs to have. It is all 100% linear.