SECRET MEDALS: 1. Click on the money in the shop. 2. Click it again. 3. Get the Brick by clicking underneath the Whirlybird (Glider). 4. Destroy an obstacle while using the brick. 5. Lose all your fuel at a really high altitude. 6. Have no idea how to get this one, but I think you have to slide on the ground while propelling yourself forward. 7. Unlock classic mode and arcade mode by pressing the penguin's beak in the title screen. 8. Click Secret Medal No.8, and I hope this helped!
I crushed the planet. The way to do is by crashing into the ground at over 300 mph. And the 'Easy way' to beat the game is to click the penguin's nose on the title screen.... I think.