How can I play BioCross?

To form a word, the player must click on one of the letters in the rotor, select the next letters by dragging, and release when the desired word is complete. If the word is among those provided in the grid, the corresponding cells will be revealed.

The player can receive a hint, which consists of uncovering one of the hidden letters on the grid. Each hint costs a point, which will be deducted from the player’s current score.

The player can only benefit from help if his score is equal to or higher than the cost of the help itself.