tailslide=hold the down button while approaching the wave. corkscrew=hold the down button while airborne. flip=while airborne,you hold down the left or right button to make a 360. schooled=bring other fish airborne. firecracker=have enough speed to reach the atmosphere. extension=pass one of the rings in the water or in the air. starslide=approach the yellow star path in space(like tailsliding but in space). apollo 18=have enough speed to surpass the moon. reversal=an underwater 360.??
Oh and reversal is right when you go back down to the water and spinning back out holding the left arrow key. The right one is another trick but I forgot the name...
There's also one for changing spinning directions mid-way and going 360. For an example, after a left flip, you go right flip.
after nebulous, you can reach jupiter ^^. I only saw it but i never reach it . I had like 17M points lol.. It would be cool if there was a mode whit no time limit or something like that.. we could explore all the game
i made a very good walkthrough called "Reach the End of The Universe in Doplphin Olympics 2" and if u are recording how high you go, it is about 2600-2700 meters high
Front flip and back flip count as two separate tricks.
Reversal is when you switch directions between jumps. Entering the water heading right and exiting the water heading left or vice versa would count as a reversal.
There's also a trick called a wraparound. It shows up sometimes but I'm not sure what it is.