It's awesome. First, have a lot fun by going through it blowing shit up spectacularly. Then, try a passive playthrough without killing anyone. And see how things play out differently!
Asha is one of my favourite videogame bosses, especially on Extreme/Ultimortal difficulty.
And the music kicks ass.
I am still unable to beat a fully charged Tor (it's a thing that unlocks after finishing the game once that allows you to make the end boss more powerful) on Ultimortal difficulty. But I will beat him one day!
Who says games made in Game Maker can't be good?