Nah this isn't like the first few versions of Angry Birds. They have these stupid fireflies that you need to unite to beat the level. You will finally beat a hard level, only the fireflies get blocked by a small obstical and won't fly around it to unite. Forcing you to use another bird to break a single block or whatever. Now you will likely lose the level by one bird. They only give you 5 tries a day but they offer packs you can buy to beat it. Selling packs is ok. Dont manipulate though.