Tank shapes selection added.

Better appearance of tanks on title screen.

MANUAL_EN.md

@@ -28,7 +28,10 @@ The [RETURN] key or a joystick button moves to the next screen.
 
 ## 2. Entering the name of players and selecting the level of computer-controlled players
 
-The second screen is shown for each player. Here you can use the cursor keys or joystick to select whether the tank will be driven by a human (HUMAN option) or a computer (other options). The [TAB] or [SELECT] key, and on the Atari 5200 console the [5] controller key allow you to choose which joystick port the player will use. At the same time, you can enter the name of the selected player from the keyboard.
+The second screen is shown for each player. Here you can use the cursor keys or joystick to select whether the tank will be driven by a human (HUMAN option) or a computer (other options).
+The [TAB] or [SELECT] key, and on the Atari 5200 console the [5] controller key allow you to choose which joystick port the player will use.
+The [INVERSE] or [OPTION] key allows you to select one of the 3 available tank shapes. On the Atari 5200 console, this is achieved by cycling through joystick ports with the [5] key.
+At the same time, you can enter the name of the selected player from the keyboard.
 When the [RETURN] key is pressed or the Joystick button is pressed briefly, the screen switches to the next player until the difficulty levels for each player are selected.
 The player's name can also be entered with the joystick. After pressing and holding the button for more than 1s. you can use up/down movements to change the letter being entered, and left/right movements to change its position in the name. Releasing the button ends the name entry and returns to the level selection.