Clara
Terrarian
Sorry, I should've been more specific. The one directly above the boss room has a switch on the wall that does effect the opening and the exit. I was referring to the blocks right before you repel down the rope into the boss room. There's like 6 or so in a vertical line right in front of the rope that relocked and I've absolutely no idea what controls it.
The one thing you could do so they don't absolutely have to play the first map is provide them with the same items you can get in the original map right from the start, so they can technically make a new character and still have everything as though they just finished the first. The one underlying factor is they wouldn't get all the upgraded versions. You know, if you ever feel like making a sequel.
Oh right I didn't even know those existed or why they are they for. Looking at the wiring it is only connected to the teleporter you use to exit the area after you get the items after defeating the boss. I have no idea how that would be activated without defeating the boss, unless you forget to take the items. It does seem pointless, perhaps there's a good reason for them, I'll have to ask the other two, it looks like something mbran did.
Certainly, we would have to add some basic starting gear if we did a sequel map like that. Would be something cool to do if we had lots of time and nothing else to do, but I really doubt we will, I think we'd all prefer to make something separate from this map.