Options are located on the menu wheel

Volume - on this screen you can set the music and sound effect volume

Camera Follower -

As objects move during the game, the camera follows the object that is moving so that you can see what is going on. To speed the game up, you can turn this feature off

Movement Speed -

Controls the speed that objects move

ASDW Camera move speed -

Controls how fast the screen moves when moving the camera using the WASD keys. As a note, you can also move the camera using the right mouse button.

Game Difficulty -

Sets the game difficulty. Can not be changed during a game