While in a mission, pause the game and press Up, Up, Up, Up, Down, Down, Down, Down. The camera will no longer go through buildings, but instead stay focused on you.
To start with "The Pantera," enter the password KFKFKFOEKJ.
To start with "The Zaskar," enter the password FDFKFKHCJK.
To start with the STS 1, enter the password IFKFKFKGKJ.
While in a mission, pause the game and press Up, Right, Down, Left, Up, Right, Down, Left. When you hit the trees they will super sway.
While in a mission, pause your game and press Left, Left, Right, Right, Left, Right, Left, Right.