On the Subject of Invisymbol

“Wh t do you me n you n’t see i ! Its bvio !”

• Pressing the right button will cycle through 5 symbols.
• The symbols may be rotated three-dimensionally, and parts of the symbols may not be visible when looking from certain angles.
• Find each symbol in the below chart. Four of the symbols will be orthogonally adjacent to each other, forming a tetromino.
• Press the left button when the symbol which is not adjacent to the others is displayed.