The main difference between animated games and board games is that CardStack objects are animated and can move about the screen. The User CardStack usually contains just one Card and is always located in the center of the screen. The arrow keys (or a joystick) are used to scroll up, down, left or right.
User Interface Commands:
Move User: arrow key or joystick
Primary Action: left-click
Secondary Action: right-click, select from popup menu
Move Object: drag and drop
Zoom Out: Page Up; zoom in/out by factor of 2
Zoom In: Page Down
Display Entire Level: Ctrl+Page Up
Maximum Zoom In: Ctrl+Page Down
Show/Hide Backpack: Ctrl+B