Two Super Small Dots Birds Venture ：Fly Cross Real Crisis City

▶1, Make your bird fly.
▶2, Game center function is optimized better, your score, your playing times, your coins will all be in record.
▶3, You can collect gold coins. These coins can be used to buy birds life.
▶4, There are moving pipes and they makes this game more challenging.

Attention:the faster bird appear must the black bird get at least five coins!