Very fun game. And to those saying the graphics are bad. Well, if it had to high of graphics it might lag on some computers and make the game hard. And it doesn't need good graphics. Perfect how it is.
Also, to those saying the birds are annoying and unnecessary. Well, they are necessary because they are annoying! It distracts you.
Although you say you can't avoid the "Return to Lobby" error, it is still incredibly annoying and GREATLTY hurts your game. So I gave it a 3 out of 5 start. Would have been 5 of 5 if the lobby button worked. Sorry.
Good effort, but maybe you should work a bit harder on your next game.
Also, on the menu with the cursor it is VERY annoying.
My Rating on a 1 - 10 Scale
Graphics = 3;
Gameplay = 2;
Music = 2.5;