>Use laser eyes to burn hole in shell
Lasers engaged!
... They're not very effective.
>Concentrate all MASS not being used for ORGANS or STRUCTURES into SUPERMASS and lift legs breaking through the SHELL with all your weight concentrated in one point.
You're not heavy enough. You sure secrete a fine SHELL!
>Create JOINTS in the shell.
No matter how much you try to wish it otherwise, it's not going to happen.
>Evolve Secretion Control
>Evolve the ability to excrete acid.
You ascend to a higher plane of secretion control!
You can now selectively secrete from parts of your body.
You now have more refined control over the substance produced.
You can now secrete ACID.
>Use Acid Excretion to destroy shell.
That shell is going down!
>Emerge
This dark oubillette has never seemed so welcoming!
You feel HAPPY.
You have undergone a STRANGE METAMORPHOSIS in your cocoon-like SHELL.
You are now OPAQUE.
>Recreate shell with new control over excretions as a totally bitchin' suit of fully articulated chitinous armor.
Your precious FLUIDS are dangerously low! You have insufficient FLUID to secrete that much SHELL.
You could create a partial carapace with your remaining FLUIDS, do you wish to do that?
Seeing the split over the spider legs thing, it seemed a carapace would also very divisive. I decided to post the update up to this point rather than spend more time thinking it over. I'll give you guys a day or two to decide if you want to go with the shell, and then post the rest of the update.