Underground

Description
The Underground is unlocked when you purchase the Explorer Kit located in Cinnabar Island Shop. It also has its own currency called Diamonds that can be used to purchase upgrades for the Underground or Masterball at the Pokémon League. For more information about the Underground, open it by clicking on it after you purchased the Explorer Kit and click on the Help tab.

Upgrade Explanations

 * 1) Max Energy - Increases the maximum energy of the player
 * 2) Max Items - Increases the maximum amount of items that can spawn on a layer
 * 3) Min Items - Increases the minimum amount of items that can spawn on a layer
 * 4) Energy Restored - Increases the amount of energy regained by the player on each energy regeneration
 * 5) Energy Regeneration Time - Decreases the amount of time between each energy regeneration
 * 6) Daily Deals - Increases the amount of daily deals offered
 * 7) Bomb Efficiency -
 * 8) Survey Cost -
 * 9) Survey Efficiency -
 * 10) Larger Underground, +1 Max Item -

Efficiency


To find Underground items most efficiently, use the chisel to mine the green tiles first, followed by yellow, then red.

Items will never spawn in the outermost row of tiles, so they should be avoided.