Thank Magn!
I'm glad you liked the game! I'm reworking the controls for the game, they are already when more responsive then they use to be. I'm planning on maybe having multiple colors for the blocks, but I was trying to give myself that limitation to for my creativity and make more types of machines and such. Also, I thought about having different shapes, like circles, but it doesn't always make it super clear. I'll try to see if there's an interesting way to integrate them.
Thanks for the feedback!