LEVEL WARP :
Move the Left Difficulty Switch (located between the controller ports) to the left during game play to display all of the other towers in the game. The 7800 will automatically scroll through each tower one-by-one. Toggle the difficulty switch back to the right to stop the scrolling and select the tower and level that you wish to jump to.

UNLIMITED LIVES :
Use the "Level Select" code to choose the tower immediately before the desired tower to be played with unlimited lives. After moving the switch back to the right, intentionally lose all lives. Move the Left Difficulty Switch to the left, only after the last life is lost, but before the game over screen appears. The next tower will appear. Move the switch back to the right to begin game play with unlimited lives.

GAME COMPLETED GLITCH :
Enable the "Level Select" code and return to level 1. Complete the level and the erroneous"Game Completed" message will appear.

BRINGING DOWN THE FINAL TOWER :
There are four doors located at the very top of the final tower. You must select a door to walk through so that you may enter the control room and destroy the tower. Choose the third door from your position on the screen.