The game's menu has three options, including Play (the game's main mode), Demo (watch a computer play the game), and Download (give demo to another player). Play is the game's primary mode, and it includes:
Single: The game's single player mode.
Vs. Computer: Play against a computer.
Vs. 2 player: Play same game as above, though with a friend.
Credits: Available after unlocking. Shows who made the game.
The single player mode features a variety of other options you can choose from as well, though Start is the main one.