Eighty-One, or 81, is an Numberblock made of 81 blocks.
Eighty-One has 80 pink blocks and 1 red block, his eyes, mouth and his limbs are all pale blue.
's 81 as the square ranger of Square camp
Catfish Kids' Eighty-One, from a CLICKBAIT VIDEO
We're Going on a Square Hunt, 9 referred to him as '9×9'. He made an appearance in The Big One as a compound until his figured out form debuted in Square on the Moon.
Eighty-One is the first numberblock in the 80s to be figured out.
Eighty-One sneezes like
Nine because he is 9x9. Eighty-One doesn't usually show his legs. His figured-out form first appeared as a picture in
Thirty-Six; his full body was visible in Square on the Moon, although the legs showed only in a close-up shot. Eighty-One is the 4th fourth power to be figured out, the first, second and third being
One, Sixteen, and Ten Thousand, respectively. He is also the 4th square to be male.
Sixteen (character), is almost a super rectangle with 5 factors. Some viewers think that his 'one' is like his nose.
Zero, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, Twenty-One, Twenty-Two, Twenty-Three, Twenty-Four, Twenty-Five, Twenty-Six, Twenty-Seven, Twenty-Eight, Twenty-Nine, Thirty, Thirty-One, Thirty-Two, Thirty-Five, Thirty-Six, Forty, Forty-Five, Forty-Nine, Fifty, Fifty-Five, Sixty, Sixty-Four, Seventy, Eighty, Eighty-One, Ninety, One Hundred, Two Hundred, Three Hundred, Nine Hundred, Orders of Magnitude, Seven Thousand, Ninety Thousand
Alter-Egos Big Bad Square, The Terrible Twos, Octoblock, The Three Threes, Octonaughty, Step Squad, The Four Fours
Forty-Two, Ninety-Nine, Compound Numberblocks
Flapjack Snaffler, Blockzilla, Big Tum, Twangle
One Times Table, Two Times Table, Three Times Table, Four Times Table, Five Times Table, Ten Times Table
Fluffies, Squarey, Numberblobs, Aliens, Rainbows, Flatlanders, Alphablocks