| • | A new letter is dropped onto the board once the previous letter lands on top of another letter or reaches the bottom of the board. |
| • | Click on letters to select them, ultimately forming an acceptable word. |
| • | Click to the left or right of a falling letter (or press the left or right arrow key) to move it one column in the corresponding direction if space is available. |
| • | Click on a falling letter (or press the down arrow key) to make it drop much faster. Once the letter lands, it will be selected if it can be. |
| • | Click on any of the selected letters or the 'Submit' button to submit the word for comparision against ZooEscape.com's dictionary. |
| • | The selected letters of an accepted word are removed from the board. |
| • | If the submitted word is accepted, the score for that word is added to the player's current score. Otherwise, the selected letters are cleared. |
| • | If the player's current score exceeds their high score, the 'Submit Score' button is enabled and the player may submit their score at that time. |
| • | Submitting a high score ends the current game. |
| • | The game ends once there are no empty spaces on the board. A high score can be submitted at that time. |
| • | The game can be paused, which stops the clock until the game is resumed by pressing the 'Resume' button. |
