That is ultra hard :) I have so 903 coins so far. I cant reach yellow birds on levels 27, 30 and 32, a few coins on 35 and complete whole 38, 39 and 40. There are some walkthroughs on YT that might help you.
what a bunch of naggers u ppl! this is the most amazing flash platform game ive ever played, its demanding but still gives a lot of fun, if you like it - try jumper or untitled story by mattmakesgames
why the hack is that game lagging so much?? its awsome but i cant play it here, downloaded swf file but there is no continue option :S if someone has a solution please msg me