click"play", select an Episode,and ,select a level,hold down the mouse to pull the bird,and loosen the mouse to kill pigs!!!When you kill all the pigs,then you win.If you birds<1,you will lose.
thanks to @puneri @Paddle2See --Updates-- 23/1/2017 V2.5 Update:Level 11 and 12.The game is more fluent now.(I adjusted 43 sprites...) 23/8/2014 V2.3 Update:10th level 22/8/2014 V2.2.4 Update:The initial interface optimization 13/8/2014 V2.2.1 Update:fix a bug 5/8/2014 V2.2 Update:9th level 29/6/2014 V2.1.2 Update:8th and II th level is easier,fixed bugs. 28/6/2014 V2.1(11:00 a.m.) Update:"II"th level 28/6/2014 V2.0(10:00 a.m.) Update:8th level 28/6/2014 V1.9(9:00 a.m.) Update:7th level 27/6/2014 V1.8 Update:6 th level. 25/6/2014(4:00 p.m.) V1.7.2Update:bird's bonus score. 25/6/2014(12:00 a.m.) V1.7.1 Update:bird's point. 25/6/2014(10:00 a.m.) V1.7 Update:5th level. 24/6/2014 V1.6 Update:4th level 22/6/2014 V1.5 Update:"I"th level , fixed 6bugs,bird's bonus score...... 19/6/2014 V1.2 Remixed:3rd level,kill wood's score.