It works perfectly on mobile BUT you have to change the layout size if I play it on mobile. From horizontal to vertical. Like the original flappy bird. In this way it will be perfect on both systems
Just played! Basically it's like flappy bird, but you added also bonus and malus, different obstacles and very nice artworks! Good job! For me it is 4/5!
Chrome: https://chrome.google.com/webstore/detail/free-games/gechcfjojodafcpggkekfkkfpjacenno
Opera: https://addons.opera.com/extensions/details/free-games-2/
Click and Play!