Mega Coin Squad

Completing any of the 16 levels in under 30 seconds may seem daunting, but actually becomes very simple once you've upgrade your character and become accustomed to the controls. After upgrading your character how you see fit (though I would recommend getting the Double Jump ability and Shoulder Charge/Upper Punch/Ground Pound upgrades as soon as possible), return to Green Valley 1-1. The coin requirement here is only 150 coins, and the level is very small, meaning you can easily maneuver the level with your new upgrades and collect all 150 coins very quickly. As soon as you have 150 coins, rush back to the piggy bank to deposit your coins. Doing this in less than 30 seconds will unlock both "Gone in 60 Seconds" and "Gone in 30 Seconds."