There really should be an enemy alert at the top of the screen. It's annoying when you're doing well and all of a sudden an enemy shows up out of nowhere and knocks you into the abyss with no way to rescue yourself in time. If you could just make small icons flash at the top of the screen when an enemy is, say, half a screen away, it would make the game less of a luck-based mission.
I mastered it in under a half-hour. It was pretty underwhelming. One way you could probably make this game bigger would be to introduce a sort of Super Mosaic mode, where you select individual tiles (levels) from a larger patchwork (the level select screen). Then, when you go for perfect, you have to work so that the colors on the edges don't match bordering level edges.
Now I discovered that effects don't compound. Using two brass letters doesn't make explosions bigger, nor does using multiple jade letters multiply damage further. Well, I've had enough. Far, far too many failings in what would be an otherwise promising game. 1 star.
As for me, I'm lowering my rating to 2 stars. The game always draws letters in such a way that you will never get more than one of any letter in a hand. As a result, it becomes way too difficult to use most or all of your letters in most cases. If you could draw multiple copies of a letter in a single hand, I'm sure it make it would stop being horribly frustrating.
The balls moving around in the boiler is a cool effect, but in terms of gameplay, it's impractical. When you change the sorting, it takes way too long, and it doesn't help that you can't just exit and reenter the screen to speed it up. I would suggest having an option to turn collision physics on or off. With collision physics turned off, the balls would fall into place a lot more quickly. To prevent balls from settling in front of each other, you could set 60 specific points for the balls to hover around, spaced apart enough so that there's no danger of some balls hiding behind others. I know it's a lot less flashy, but as I said before, it's much more practical.
 "Cluster Pucks"){kind=icon}
 "Tower of Greed"){kind=icon}
 "Copy Cat"){kind=icon}
 "Adventurous Eric"){kind=icon}
 "Wake Up the Box"){kind=icon}
 "Blocks With Letters On"){kind=icon}
 "Full Moon"){kind=icon}
 "Medieval Rampage 2"){kind=icon}
 "Frontier"){kind=icon}
 "Flood Fill"){kind=icon}
 "Pumpkin Remover"){kind=icon}
 "Cover Orange"){kind=icon}
 "Clockwords: Prelude"){kind=icon}