This achievement requires that you fully upgrade both the jetpack and bat. Additionally, fully upgrading the bat will unlock the "Bwaat man" achievement and fully upgrading the jetpack will unlock the "Bwaackpacker" achievement.
Upgrades can be purchased from the shop (click the shopping cart from any level-selection screen) under the "Gear" tab. You will need to upgrade both items to Level 10. It costs 10,310 coins to upgrade the bat, and 12,380 coins to upgrade the jetpack, for a grand total of 22,690 coins. The best and quickest way to grind coins can be found in the "Best Coin Grinding Method" section at the end of the Roadmap. As soon as you fully upgrade both, the achievement will unlock.