Tap to advance menus, tap gateways with their corresponding level/menu names above them to go in levels or menus. In the levels, the python follows the cursor or touch position. Life pellets are small dots that restore segments. In the level editor, the camera scrolls to wherever you're touching (unless an icon is selected) and there are 12 icons, which all do various things. The right arrow icon allows you to play a level from whatever level data is in the text input, the up arrow icon loads a level from memory, the down arrow icon saves the level to memory (but you can't save unless there's at least one star in the level), and the back icon goes back to the level select.