hpesoj thank you for the comments. I agree with most of your complaints/comments, and will do my best to implement them into the game.
With regards to trick-naming, I have used the vocabulary I learned growing up around gymnastics and trampoline, and certainly some of the terms are not "official". I will switch "layout" to "straight position" or something similar, and fix the spelling on the existing tricks. "front drop" does sound better, I will fix that too. I was unaware of the "turnover" term, I'll do some research on that one
I agree the overall UI (in-game) could use some sprucing-up. I will add the current goal on-screen, and try to make the trick names and other on-screen text more visually interesting.
I contemplated seat drops for a long while, and while technically very easy to add to the game, I was concerned about the game becoming too confusing for beginner players, as most of the people might already be overwhelmed by the controls. I will give it some thought, though. I know it's the only basic move that is missing.
thanks again for the comments, I hope to make the next release even better (with more game modes, and many improvements to the overall presentation).