It's a good game, don't get me wrong
I must say, it really is a great game, but you know what, there wasn't much new since the last one. Yeah, you added some new game modes, and a few more features, but that isn't enough. I got some ideas, so I could call the next one a sequel, not an update, as I'm currently calling this.
1. Sandbox/Experimental Mode; to train you up and so, but don't just remove the brick amount and so, let users decide the weather (you had rain, add more types, like Ice) and such.
2. Custom challenge; Allowing users to add their own rules and such for a game, like amount of blocks, type of blocks etc...
3. Heavier, and lighter blocks; Some blocks could be heavy (steel?) some could be normal (wood?) and some light (light material here)
And even if you said that you couldn't have unlimited amount of blocks, you can yet try it.
Oh yeah, I'm definitely not trying to sound harsh, I gave you a 5/10, but I'm trying to help you making your games better. A good game made better makes a great game!