I don't think they implemented a windowed mode for this game. I've tried a whole bunch of things before to get it to work, but nothing did.

Unless alt + enter or F11 works, I couldn't say either.

I have the same question too. How to get this game to not do fullscreen?

It's not possible to my knowledge.
I tried to modify the properties among others things and it wouldn't work.

@ThatSpanishGuy 
@PrincessLasagna 
@stoic-rose94 Hi, so I have been playing this game recently or more into speedrunning it. This game is extremely easy to play and finish but I have one issue of lag when I play this game. I download this game from Steam but it seems like there is lag. How did you guys get 3:01 or no lag when playing this game? Please explain.