Fun game, had an interesting gameplay mechanic that added a nice twist to the original Flappy Bird. The colors used in the art were soft and appealing, the dice displaying the speed helped me understand what was happening. My suggestions would be that sometimes, a game over was inevitable so perhaps a mechanic that displayed your next dice roll one step ahead so that you can plan for it might help, or something similar to how Tetris lets you know the shape of your next piece.