To do the above, you must first unlock Gold mode.
In Gold mode, complete all of the stages up through Pacific Ocean - Once you beat Pacific Ocean you will be taken back to the game menu screen. (Make sure you go to configuration and SAVE your progress!)
At that point, you will now be able to play in Platinum mode. You can then also play the Gold mode version of Gulf of Mexico. (Which, just like in Gold mode, is extremely difficult. Only this time, even worse :P)
The speed settings will gradually unlock for you as you progress through the game, but the ultimate ''Warp Speed'' setting will only become available once you complete every stage up through the Pacific Ocean on Planinum Mode.
Follow the given methods