Skill, yes skill, this game is all about skill. You are flying a zeppelin (no, not a lead one) - trying to get from point a to point b to point c and then to the level end. As you fly around, you have landing points that you should use, just for a rest and also to unlock a mystery letter that has some even more mysterious purpose.
Control, you must learn control. It's all about not panicking when you're flying around. Nice easy gentle clicks of the mouse are all required to ensure a smooth flight through each game level. If you're twitchy, you're asking for trouble. The Zeppelin is super responsive and does not like too much clickity clicking.
Can you get through this game and maintain your sanity? That is something you will soon discover. It's not as bad, nor as stressful as Flappy once was, but it is close. Happy flying, and avoid hitting things in the game!