Name: S
Aliases: Dammit, Snake-Eyes, S-Hole.
Pros: None. Useless little buggers.
Cons: Especially does not cooperate well with the Z block. Still, its relationship with its own type might be even worse; it has a tendency to transform innocuous staircase-shaped terrain into dark, looming towers of the same block. And, much like the disastrous Tower of Babel that foretold the fall of Babylon, these S-shaped tetrads will be your downfall. Also, they tend to roam in packs, so before you know it, your beautiful tetrad sculpture will be under siege by hordes of these ugly, ugly blocks.
Interesting sidenote: Fistfights at local bars, affairs with multiple Spice Girls - this tetrad is one bad boy.
The S enjoys scuba-diving? Actually, no, he enjoys dressing up like Claudine Auger ('Domino', from 1965's Thunderball.)
Survey SAYS: Stinker.