Hold the mouse button to fire with your FlaK
1,2,3: Call in support strike
4,5,6,7,8,9: Place building (each building type must be unlocked in the Upgrades screen first)
P: Pause the game
- Your FlaK fires with some inaccuracy, use this to your advangtage. Find dense points and areas to cover with your fire for maximum damage.
- Each air raid request costs more and more after each call (there is a ceiling of 15.000), use them only if you really need to.
- The longer a balloon survives of the field, the less score you gain by destroying it.
- If a balloon with not much damage comes too close, don't waste your fire on it, look for other baloons which you can still prevent from dropping bombs.
- Every building you place becomes stronger over time (oil rigs produce more score, cannons fire faster and/or stronger), so keep them alive as long as you can!
- After leveling up a few times, it's worth replaying easier levels to earn a higher score. The score difference adds to your total score, which can level you up again.
- Try to earn gold medals, they raise your final stage score a lot.
- You can see military rank markers above the scores for each levels. The highest rank marker is 5 gold starts.
- There are hidden levels which appear only if you complete some specific levels on the map with the highest rank available.
- Balloons have different behavior and parameters according to their colors/textures. Many of them are equipped with multiple bombs.
- If a balloon survives floating through your area, it comes in for an other round, reloaded with bombs, having some damage healed and an increased speed.
- Balloons are getting tougher towards the end of the stage, so try to keep your defenses alive.