Thanks for all the feedback! I really appreciate it!
I had been thinking about how to expand/improve the idea that past few days and I literally had that same idea to make the blocks rooms!
I noticed that due to the relatively small and blocky shape of the Tetris playing field, the "level" created by the blocks just felt small and uninteresting, so I was trying to figure out a way to form a more diverse and interesting a level, and I think the rooms idea could be the answer!
Regardless there's a lot of ideas I want to experiment with. I'm also interested in taking a step away from Tetris and trying to come up with my own original falling block puzzle game that's designed from the ground up to mesh with the platforming!