Heli Attack 3/Secrets

Cheat codes
These are entered by going to the main menu, then selecting Players, and then Cheats.

To unlock weapons
 * John Rambo : Unlocks Bow & Arrow
 * Old Faithful : Unlocks Chain Gun
 * Its a Jackal : Unlocks Sniper Rifle
 * This is my boomstick : Unlocks Double Shotgun
 * Shrapnel : Unlocks Flak Cannon
 * Follow the leader : Unlocks Guided Launcher
 * Moonshine : Unlocks Drunken Launcher
 * Gloop : Unlocks GooGun
 * 9 Volt : Unlocks Spark Plug
 * Australians all let us rejoice : Unlocks Bladerang
 * Alpha : Unlocks Laser Rifle
 * Beta : Unlocks Auto Laser Rifle
 * Gamma : Unlocks Laser Shotgun
 * I don't have time to bleed : Unlocks Anytime
 * Call in artillery : Unlocks Airstrike
 * Missile launch detected : Unlocks A-Bomb Launcher
 * Bass in your face : Unlocks Soundwaave
 * Wash away the rain : Unlocks Black Hole Generator
 * Up up down down left right left right b a select start: Unlocks all weapons

Collectors Edition Cheats
 * Firelines : Unlocks Fire Mines
 * Pure Pwnage : Unlocks Anti Matter Cannon

To unlock levels
 * Ive got jungle fever, she's got jungle fever: Unlocks Amazon Jungle
 * Aint no mountain high enough: Unlocks Canyon Lands
 * Who rides the wrecking ball: Unlocks Underground Lab
 * You are the moon master: Unlocks all levels

Miscellaneous
 * iopred: Unlocks Programmer Message
 * DayDream: Unlocks Programmer Message
 * Training 1-1 1-2 1-3 1-4 2-1 2-2 2-3 2-4 3-1 3-2 3-3 3-4 4-1 4-2 4-3 X

Secrets

 * If the player shoots any enemy while in the air by using Hyperjump, he/she gets 25 machine gun bullets.
 * In Zone 2-2, go to the place where there is a branch. Soon you will fall down the branch. Shoot at the branch. The branch will break. You can use this place as a hiding spot.
 * In order to find hidden weapons, hold Modify and Crouch in certain places . There are 3 hidden weapons : in 1-3, in 2-2 and in 3-3 . They're under the earth, you must go down by holding Modify and Crouch at the same time.
 * In the training mission, there is a flak cannon on a high platform above where the four dummies are. To get on the platform, you must slow time while hyperjumping on the platform.  Using regular-time will be extremely hard because you have to crouch to get on.
 * There is also a chain gun in the training mission. This is obtained by dropping down at the first straight wall and shooting any weapon directly at it. This will reveal a path leading to the chain gun.
 * Important in survival, especially for the X level: when a Big Gun starts shooting in all directions use time distort. The only things it doesn't affect is the Big Gun's machine gun spin speed and the duration of its shooting time (approximately 5 seconds).  Focus on dodging incoming bullets; with time distort fewer bullets will be fired (1 bullet instead of 4-5).  Remember to fill your time powers again afterwards by killing helis or ground troops.