I got to the icy caverns, but did not realize you couldn't hit the metal shards, so died instantly. I thought I would either collect something, or lose a life. If those were introduced earlier in the game, it might make more sense.

good game

good game

Very nice game !! More options at the end of each outing could be nice ?

Definitely a really interesting concept for a flappy like game. Good job. 

Interesting, but unclear. We need a guide for this game.

Interesting although a little bit confusing, maybe a more in depth tutorial could be helpful. Good job!