Yes, you do have to get all the serpents, and reach the fuse in time for it to kill the tar mother before a tar baby spawns at the end.
Some general hints - I'm not sure how helpful this will be though:
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×I focused on whittling down the rattlers first. While I was doing this some of the red serpents ended up killing themselves in the jumble of snakes following me around.
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×Of course, you need to keep at least one of the rattlers alive so you can get the last red serpents.
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×Use the wall layout to your advantage.
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×If you get a rattler and a red serpent to follow you in the right way, then the rattler can act as a wall to trap the serpent in. Like this:
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×
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×Also, brained rattlers are a pain to deal with quickly. Try trapping them against the wall, like this:
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×Now step diagonally upwards.
I think this room took a bit of practice for me to get it. A demo can be provided if necessary.
[Last edited by Kwerulous at 05-24-2013 11:19 AM]