First, You must get a score of 12,345 in a game. Make sure that this is exact!! Then you will click the home button 4 times in less than a second. If this is done correctly, the next time that you enter into whale trail, gruff will be bought and ready for you to use!! good luck trailin'.
There’s a rudimentary physics engine at work here. Use the effects of gravity to add speed to your trajectory.
Try to time when you activate your frenzy mode. It’s more useful at the beginning of a stage, where are more clouds to disperse.
There are fans scattered around that offer short bursts of propulsion. Use them to access higher areas, or to enact dynamic loop the loop manoeuvres.