Wow!!! The game is good, and the message you want to give is also very clear and i liked that very much!!!
Thanks for spreading awareness, I didnt knew about this before!!! I played the game and dont know why the game just restarted midway at wave 5 (i guess), IDK why!!!
Also, tip that will improve the gameplay - make some mechanics so that we can a bit control where are sheeps are going. Since we have to stay grouped the sheeps just randomly move here and there and there is no way to control them. Since u finished the game in less than a day, I wont complain about no powerups ^_^
And i loved the way you incorporated your tradition of repelling the evil spirits into a game!!! <3
Overall, Great Job :D