This game is really awesome!
Being alone, I couldn't have fun to be honest.
But yes, this would be an excellent arcade game or a couch co-op.
The 2D art is so good.
The falling parts thing was a bit confusing to figure out. I think the logic is that bigger piece stays and the smaller always falls.
And also the saw-blade power-up is very unpredictable. Hard to know which side is gonna stay.