During the game press [~] (tilde), then enter the following codes:
Heli Heroes: Cheat Codes Free Download
GiveMeAll – Get All
GiveMeFuel – Refill Fuel
MoreLives – get extra lives
HealthMe – Replenish Energy
GiveMeInvulnerable – Become invulnerable for 30 seconds
GiveMeInvisibility – Become invisible for 30 seconds
GiveMeAllAmmo – All Weapons and Ammo