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Ten Billion Barrel (8 layers)A ten billion barrel with eight layers which gives four times the size of the original puzzle.
Ten Billion Barrel (Junior)A ten billion barrel with one layer and 10 beads removed.
Ten Billion Barrel (Master)A ten billion barrel with an extra layer including 10 additional beads.

Ten Billion Barrel (Professor)A ten billion barrel with two extra layers including 20 additional marbles.
Ten Billion Barrel X4 (10 layers)A ten billion barrel with ten layers which is five times the size of the original puzzle.
Ten Billion Barrel X7A ten billion barrel with fourteen layers which is seven times the size of the original puzzle.

Ten billion 2/3A ten billion barrel with only two colums to push the marbles up and down.
Ten billion barrel with restricted movesA ten billion Barrel with two rods extended by the size of one marble.
Ten billion holeA Nintendo ten billion barrel transformed into a varikon puzzle.

Tera IcosidodecahedronA Teraminx truncated into the shape of an Icosidodecahedron which is an archimedean solid.
TeramoidThe even higher-order version of the megamoid
TerrorminxA Teraminx with a sticker scheme resembling the Cube Ultimate.

Tetra Bandage pillowed v2A bandage cube (a bicube to be more precise) transformed into the shape of a Pillowed Mastermorphix.
Tetra Pyramid 6x6x6A V-Cube 6 truncated like the Tetra Pyramid, similar to the Half-Truncated-Cube.
Tetra Pyramid-1A Square-1 truncated into the shape of Tetra Pyramid.


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