We bet you stuck with difficult level in Brain Test 3 game, don’t you? Don’t worry, it’s okay. Game is difficult and challenging, so many people need some help. Earlier or later you will need help to pass this challenging game and our website is here to equip you with Brain Test 3 Level 21 answers and other useful information like tips, solutions and cheats. In addition to Brain Test 3, the developer Unico Studio has created other amazing games.

More tips for another level you will find on Brain Test 3 answers page.

  • Find a way to open the door. Put three stones to the sockets on the door. The blue stone is behind a box. The red stone is inside the cabinet.

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