Addicting game. Even though the mechanics are somewhat "bogus" it's easy to get used to.
For those having problems: Forget about the money and just focus on going up! Money at higher floors are worth much more, so there is no point taking risk anywhere. Just climb and climb and you'll be fine.
The secret medal is intuitive for anyone who can do math or has a calculator and at least 1 finger (the game can also be player with only 1 finger, ok?). It requires $ 480,000 and that is extremely easy if the player focus on climbing.