Heres how to beat lvl 50, assuming somone has gotten there.
Starting with the snd on the bottom, count up 7 and click all of them Except for the bottom. They HAVE to be in this order:
7,8,2,4,6,8,2
If your a first time player i have some tips of my own to share: 1. If you dodge a biter by running away from his lunge, when he lands (assuming your in front of him) he will imeaditly lunge at you again. 2. Razor Queens will only appear at the end of the nest. 3. What ever you do, if you see a Razor Queen do NOT get bumped by a green glople. the queen will slash you almost emediatly.
Hope this helps the new comers :)