Ingame press ‘~’ (pressing the ‘Pause’ key is useful), enter one of the following codes and press ‘Enter’ for applying:
Heli Heroes: Cheat Codes (English) Free Download
GiveMeAll – All following effects in the one mix
GiveMeFuel – Full fuel
MoreLives – Full lives
HealthMe – Full health
GiveMeInvulnerable – 30 sec. invulnerability
GiveMeInvisibility – 30 sec. invisibility
GiveMeAllAmmo – All guns, rockets, missiles, lasers, plasma cannons and nuke