Pretty neat! Although I have to say, one thing that would look way better than those yellow floor numbers is some sort of actual zone signpost.
No SRB1 remake?
Because you will need to unlock it first
No, that's not the reason.
As you can see such hidden levels as
are present and fully accessable.Pipe Towers, Aerial Garden, Spring Hill and Azure Temple.
Did you mean something like this?
It must admit it looks very good. Although it will be a bit of a pain to implement for each zone.
Pictues:
I'm not seeing a download link.
You can get stuck in this pool of water in the AGZ room.