Assists can give a one-time bonus to help finish a level. For example, they can make you invisible when you run into certain enemies, or allow you to refill your boost meter automatically. Assists cost between 250 and 750 gold credits and are available for purchase when begin a new round. Save them for later levels.
Boost
The Boost meter fills up quickly from all the items that you can find in the water. Use it early to beat the timer.
Boost pads
There are various objects you can collect during game play to get boosts. They provide a temporary speed boost, and also fill the boost meter to also allow manual speed-ups. When you see a boost pad, take the time to hit them as quickly as possible to shorten your completion time. When in a boost, extra effort will be required to steer your dog. Do this by tapping instead of holding the screen.
Chevrons: Boost your speed.
Force fields: Send you in the direction that they are pointing and speed you up.
Dog abilities
Use the specific diver dogs that is best suited for the current level. Use Sharko if you need an extra boost with control as well the ability to take more damage. If you are need speed, consider Sharkie. To farm for credits and pets, use Shar-Shar.
Fish routes
Always follow the routes indicated by fish. When you see a large group of fish somewhere, follow them.
Jellyfish
Jellyfish will appear randomly during a level. Rebound off them to reach later part of the level. Use them as often as possible because they will automatically steer you.
Mystery Box
Save all three puppies in a level to unlock a Mystery Box, which contains various rewards such as extra outfits and bonus credits.
Restoring Launch Cores
Launch Cores represent your energy, and once consumed it is replenished over time. To do this quickly, advance the time on your device. Then, set the time back to its correct value.
Sectors
To reach Sector 2 you must rescue at least two puppies from Sector 1. To reach Sector 3, you have to rescue all available puppies from Sectors 1 and 2.
Stats
Each time your dogs level up, you can increase their stats.
Assists...