NIGHTMARE.exe

When I press the button in this room, the game freezes on a black screen after opening the door and I get an "error.txt" with the following lua error:

"[Solarus] [38480] Error: In transition callback: maps/nightmare_palace.lua:542: attempt to index global 'stair_3f_appear' (a nil value)

stack traceback:

[C]: in function '__index'

maps/nightmare_palace.lua:542: in function <maps/nightmare_palace.lua:540>"

I would try and remove my save file to see if that fixes it, but I don't know where it's saved.

Is there a way to reset the game?

I got this error and I don't know how to resolve it:

[Solarus] [116560] Error: In transition callback: maps/nightmare_palace.lua:542: attempt to index global 'stair_3f_appear' (a nil value)

stack traceback:

[C]: in function '__index'

maps/nightmare_palace.lua:542: in function <maps/nightmare_palace.lua:540>

Is this a Deltarune ARG? ( sorry if it is a dumb question :[ )

Really great game, I had a lot of fun. Too bad combat is a waiting game for the enemies -> everyone becomes unhitible for a long time after 1 hit (except maybe the mermaid swordsgirls where you reflect attacks, i didnt even try attacking them because reflecting was just more fun) The boss number 1 was also a bit of a waiting game, but forgivable because the other bosses make up for it, and they were ALL super fun btw. I loved the boss 2, which was just a puzzle, and boss 3 and 4 were really fun tests of combat ability. Glad I figured out how to dodge with jumping during boss 1, else I would be cooked!
The angel puzzle had me stumped for quite a while, I was running around the whole dungeon trying to figure out if I missed something.
I thought every block was 1 hero, but the top block representing the angel. Got the solution by accident. Also in the following water part, when you press the reflected button, well, I don't know what it did.
The game shows really great game design. Every puzzle is well hinted at, so the player is not frustrated and hp candy is given liberaly, GREAT!
The polish is not perfect - sometimes walking forces you on a grid. And jumping into walls diagonaly stops your momentum. Also would be nice if ACT would skip text. But that is all very minor.
The atmosphere was really nice as well. Exited to try hard mode >w<