[quote data-userid="595" data-postid="77823"]
Since you mentioned the tar, I'm guessing you found the same error I did and was able to escape to the ledge with the coin after you set off the trap. So act like the trap is still set and use an item where you would if after using it a huge boulder would have come careening down at you and act accordingly. In other words use it as far away and then jump over to the other side of the spikes.
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You can actually jump over the boulder as it's rolling down the slope but it's quite risky as you have to time it exactly right.