After learning how to play the game I enjoyed the mirror idea. I would suggest putting a tutorial in the game for first-time user (the first time I played I went right into a block) and to not have the same block spawn twice in a row. A few times per game I can sit back as blocks pass by on the other side of the screen. Also I had a problem in 2 of my times playing that made it impossible to progress (screenshot posted below)

Overall, I had a fun and relaxing time playing this game. Once that gamebreaking problem is solved I could see this being a popular game in the google play store.

Good job!

I had some problems with the game. it took some time to figure out the game. some kind of tutorial could've been good. And sometimes blocks completely blocked me that was a little bit annoying at high scores. But it was fun. interesting idea to play with. Mirror idea is a good one. I'll not consider the problems I've had while playing the game but I would advice completely blocking part should be fixed. Edit : I tried one more time to screenshot it but it didn't happen(or I lost before it happens) maybe its was one time bug.

Brilliant idea loved i, Although it would look sick with particles and such