Interesting concept. I played until level 6, where I had 25 coins. It seemed like there was no difficulty increase or any kind of progression, so I think I could have just kept going forever. To keep me entertained, some kind of progression would have been nice - upgrades, new block types, increasing difficulty, etc.
I had the same bug as Clark Padmore, but kept playing, and it disappeared the next time I got 3 identical tiles. My suspicion is the bug is related to placing the tiles really quickly when you get the "congratulation" popup.
Visuals and sfx were both very nice, and all in all I enjoyed my time with the game.











