if you do the ones that are easy and just quit when they get stupid, like spend 20k in seeds... when you get done with the section, (unless you are in lvl 15, you NEVER finish that level!), but when you finish the level, you can skip the real hard or just stupid ones. and get the ones that are easy, or just plain free as you did them but had one not worth doing in front of it so you never seen it coming yet. (until you finished the level.