Really amazing, I love everything about this game, the neon style, the really clear animal drawings, the original gameplay idea and how well it fits in with the theme.
I could play it for hours, it's so satisfying when you manage to make great combos.
After 3 games my best score is 6174, still a long way from yours ^^'.
If I could just suggest an idea for improvement, it would be to add, like in Tetris, the possibility of putting a coin aside to reuse it later.
But it's already a great game, I love it, good job! :D