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Hey Eric. Yep level 177 certainly is a tricky one, but I am sure that you can do it! Be sure to use the line blaster boosters and the rocket boosters. Try to clear large clusters of the blocks. If you have any Boosters, save them for the end as this will help you rescue all the required pets.
Check out this video of a player passing this level-
https://www.youtube.com/watch?v=Mc0eyOOHBfU
Good luck!