you probably wrote the scene name wrong. an other way to change scenes is with their index number which also makes it easier to go to the next level maybe take a look at that.
I just tested your game and here are some tips but I am not sure how many of these are doable with your engine since I am not familier with game maker at all.
First if you can try to make the hitbox for the bullets or the player smaller since the examples I looked at last night all had very small player collision which made it possible to get through very tight gaps between enemy bullets.
Secondly pushing 2 directional keys at the same time only moved the character in one direction(I can move character with WASD in + directions but not in X with combination of 2 keys from the WASD.)
and lastly bullets spawned right from the middle as well which made it very hard to predict where the next bullet will come from so maybe spawn just from the edges or from an enemy or something like that.
this game was made for anothe4r game jam in only 7 day but because it was my first complete game ever I decided to include it in this one as well since there were no rules against it and that is the reason for the rushed fonts and no sound effects and I do have plans for improving the game in a lot more ways.
for example the original story that came to my mind was a a little bit longer than this(by 3 days)
and I initially planed to make the world a much more responsive one than only just the growing number of villagers like changes in the whole background and even the hero house and hero himself because of the actions but didn't have time to make them all.
and It really makes me happy that you are looking forward for more.
And yes the character sprite was from the asset store and a small part of the background was from a complete pixel-art from reddit and they both were credited as both on behalf of the creators request for letting me use the art and as the rules of the Jam.
I hope to expand the game and replace all the sprites with handmade ones and make the world a more responsive one to the actions of the hero although that might take some time.
Simplistic Art but perfect at what it needs to do.
The UI in the tutorial part was a little weird(If you didn't know or haven't done already and you also use Unity you can select the Canves gameobject and select the scale with screen size which makes it kinda compatible with different screen sizes bigger or smaller).
and most importantly It was a complete game Unlike mine which makes it even better :)
here are some bugs I encountered to improve after the jam is over:
first enemies can go off screen if ragdolled enough and the pause menu buttons don't work so you might have forgotten to attach the scripts .
and one thing that I loved is that your game had an Icon and I'm really impressed that you even remembered to get one in such a short amount of time, It didn't even cross my mind.
If players some how could see each other maybe it would have been better like a small camera looking over players and shows that to the other player like a minimap but centered on your partner rather than your self
