Decent concept, but that's about it
The concept was a decent one, an interesting twist to the classic idea. However, there could have been done more with it, like horizontal clearing and combo multipliers. There was too little in the game to make it a really fun one. The tutorial lacked introduction to the game interface, and I had to figure out the water bubbles on my own - very annoying. I liked how the paced up after a while and got more challenging, but it gets tiresome to do the same thing time and time again, no matter the difficulty. You could clearly have done more here.
I'll be looking forward to the sequel, though.
Btw... Yes. I am evil.