Try it out for yourself. It may take more or less time, given that the platforms are generated randomly.
1. Pull the rodent back.
2. Let go.
3. Press the right arrow key until fuel is spent.
4. Wait.
5. Repeat
6. Win the game.
In fact, I waited 12 minutes on the last run for him to hit the ground. The same strategy works for Hedgehog Launch 1.
How is this fun? Hedgehog Launch 2 isn't a game. It's interactive animation.
Below is a screenshot of my score to prove it. Needless to say that I maxed out all my stats and made it to Mars on the next trip.
Sad. How does this have a score of 4.3?