Boosts...
	Chests...
	Coins...
	Collections...
	Creatures and objects...
	Game Center Achievements...
	Movement...
	Saving air...
	Ship...
	Suits...
	Various Missions...

Most boosts should be purchased whenever possible to help you progress. Start by buying keys to open locked chests. The reward is always worth more than what you spent for the key used to open it. This will allow you to save up for further boosts. Following that, the Air boosts are the most important because they will allow you to dive longer. Try to have nine of them. Once again, with longer runs you will earn more than the cost of purchasing the boosts. Next, upgrade the Drill and finally Harpoon. The Defense Shield can often negate damage, which drains your air. Thus it indirectly increases your air and earning potential. The Supply Torpedoes are cost 500 coins per use. They usually will not be needed if you are stocked with attack or defense boosts. You may want to pay for an Air Torpedo occasionally if you are very deep and have to reach some locked chests. The Turbo Boost costs 750 coins and Super Boost costs 1,250 coins and allow you to start further down. If you are trying to just get large amounts of cash but not treasure, then it may be worth the purchase. The gold blocks have more money in them the further down you are.

Locked chests always contain better treasure and are guaranteed to have at least one collectible. Once you find a chest, you do not have to go near it to open it. Simply tap it from a distance. You do not have to collect the items from chests or ore that you dig from blocks by moving your character, just tap on the items.

Messages in a bottle can contain various items, including coins. You can purchase a Coin Doubler to get double the coins from loot.

Complete various collections to get bonus items as a reward. Bones that you find are parts of a collection, for example a Pliosaur skeleton. Collectibles can always found in locked chests.

Unless specified by a mission, you can ignore most of the fish and other creatures. They will not attack you unless you attack them first. Stay away from mines and blowfish ,as they can explode over a large area. However if they are near a locked chest, hit them immediately. You will save a key by exploding a locked chest.

Complete the following tasks to unlock Apple Game Center achievements.

Achievement	How to unlock
Admiral Orca (5 points)	Achieve the rank of Admiral Orca.
Adrenaline Junkie (10 points)	Use 25 super or turbo boost.
Business is Booming (10 points)	Explode 10 mines.
Captain Cod (5 points)	Achieve the rank of Captain Cod.
Collectomanic (50 points)	Complete all of the collections.
Commander Krill (5 points)	Achieve the rank of General Porpoise.
Corporal Crab (5 points)	Achieve the rank of Corporal Crab.
Dive Addiction (5 points)	Complete 5 dives.
First Plunge (5 points)	Use a super or turbo boost.
Full Boat (25 points)	Unlock all ships.
Got a Bigger Boat (5 points)	Purchase a boat from the ship shop.
Hello Mr. Fancy Pants (5 points)	Purchase a suit from the suit store.
It Belongs In A Museum (10 points)	Complete your first collection.
Last Gasp (5 points)	Use an air boost during a dive.
Look at me wow! (25 points)	Unlock all suits.
Loving The Job (5 points)	Complete 5 missions.
Major Manatee (5 points)	Achieve the rank of Major Manatee.
Net Profits (20 points)	Have a million coins in your possession.
New Toy (5 points)	Buy your first upgrade.
Oceanographer (10 points)	Discover 10 special locations.
Paci-Fish-Tic (5 points)	Didn't attack any creatures during a dive.
Pearl Hunter (10 points)	Find 20 pearls.
Private Place (5 points)	Achieve The Rank of Private Place.
Sashimi Supper (5 points)	Defeat 100 creatures.
Sergeant Shrimp (5 points)	Achieve the rank of Sergeant Shrimp.
Serial Krill-er (25 points)	Defeat 1000 creatures.
Shark Surprise (10 points)	Defeat a Shark without taking damage.
Shopaholic (10 points)	Buy all boats, suits and upgrades.
Splashed The Cash (20 points)	Spend a total of one million coins.
Swimming With The Fish (5 points)	Defeated by any creature 5 times.
Technomaniac (10 points)	Max out one of your upgrades.
Ultimate Kraken (5 points)	Achieve the rank of Ultimate Kraken.

When you tap an area, your diver will choose the shortest way to get there, even if he has to dig through a lot of dirt. Keep this in mind and always plot an easy route by swimming to the desired destination and avoid the dirt tiles.

Tapping loot after you open a chest or removing a dirt tile consumes air. Just wait for the loot to drop and move your character over it to collect it. If a chest appears behind a wall, you can still tap it to open it. Then, tap the items to pick them up. This can even be done while you are out of air. You only use air when you move your character or drill, not when you shoot.

Ships are expensive and should not be purchased until you have progressed in the game. Start by getting the Second Wind for its air boost and keep it for awhile.

Purchase the Vintage Deep suit first. It has a low cost and increases your air by 10%, as well as your defense. After saving enough coins, purchase the Pro Yellow suit, followed by the Ultrabot, which will increase all your Perks.

Mission	Objective	Experience	Difficulty
Any Shoal's A Goal	Defeat 30 fish in a single dive	350 XP	Hard
Crab Battle	Defeat 10 crazy crustaceans	100 XP	Easy
Deep Looting	Open 5 treasure chests in a single dive	150 XP	Easy
Digging Deep	Drill 200 blocks	200 XP	Easy
Easy Money	Earn at least 500 coins in a single dive.	100 XP	Easy
Fin Fracas	Defeat 25 fish	175 XP	Easy
Fish Fight	Defeat 10 fish	125 XP	Easy
Marine Mission	Discover 3 special locations in a single dive	175 XP	Easy
Open sesame	Open 10 locked chests by any means
Rocket Science	Boost to a deeper depth	125 XP	Easy
Sea Safari	Defeat a Fish, a Crab and a Jellyfish in a single dive	75 XP	Easy
Smash and Grab	Smash open a locked treasure chest	75 XP	Easy
Treasure Trail	Find 9 pieces of special loot	200 XP	Easy
Wobble War	Defeat 25 Jellyfish	250 XP	Hard