The monster is surrounded by 0s and 1s (binary), and appears to be floating in cyberspace. The patterns on its costume resemble parts of a circuit board. The symbols on its visor are "greater than/less than or equal to and semicolon" symbols.
They also both have similar ways of attacking ("Jester Lord" juggles flame balls to throw at the opponent, while "Krebons" materializes objects to hurl at them).
Three of the blocks that this monster is juggling have a striking comparison to Tetris blocks. Two of them is a "T"-shaped block and one of them is a 2x2 square, both of which are possible falling block formations in the game series.