Tip 1: Use your premium currency on Tech Cards, but also on Perks. One of them is Make it Rain, which rewards you with 24 hours worth of income.

Tip 2: Send soldiers to help your country win the upcoming war and prestige faster and make a ton more money.

Tip 3: Win the Tech Cards in Wars or spend Diamonds for special items to improve your game.

Tip 4: Unlock more Special Skills (Superchargers) There are five of them.

Tip 5: Follow the game on Twitter and Facebook to get 50 Diamonds awards for free.

Tip 6: Tap jetpack guy for extra bonuses.