Very glad that you like the idea : )
Yes some of the games end immediately due to the random placement of boulders. I Initially thought about giving the boulders a preset location, however due to time constraints it was faster and easier to just place them randomly. Also yes I also think I could have cut the speed a little, it is a bit too punishing as is.
Now that you mentioned it, the game does in fact have some similarities to tetris even though I didn't actually consciously draw inspiration from it. It's strange how this comment actually made me think my own game in a different light : D
Anyway thank you so much for trying my game and giving great feedback : )