Successfully complete "Hold Until Relieved" with a "Gold" rank.
Deathmatch challenge 1
Successfully complete the "D-Day" campaign.
Deathmatch challenge 10
Successfully complete Deathmatch challenge 9.
Deathmatch challenge 2
Successfully complete Deathmatch challenge 1.
Deathmatch challenge 3
Successfully complete Deathmatch challenge 2.
Deathmatch challenge 4
Successfully complete Deathmatch challenge 3.
Deathmatch challenge 5
Successfully complete Deathmatch challenge 4.
Deathmatch challenge 6
Successfully complete Deathmatch challenge 5.
Deathmatch challenge 7
Successfully complete Deathmatch challenge 6.
Deathmatch challenge 8
Successfully complete Deathmatch challenge 7.
Deathmatch challenge 9
Successfully complete Deathmatch challenge 8.
Horror Voice
To get Horror voice blow up the small grave behind the large building on the mission Grave Danger.
Jet Pack challenge 1
Successfully complete the "Rum Deal" campaign.
Jet Pack challenge 2
Successfully complete the In Space, "No-One Can Hear You Clean" campaign.
Jet Pack challenge 3
Successfully complete the "Hold Until Relieved" campaign.
Level generator
Not only can you type in numbers to generate levels, but you can also type in words and it will convert it for you.
Parachute challenge 1
Successfully complete the "Falling For You" campaign.
Parachute challenge 2
Successfully complete the "Worm and the Beanstalk" campaign.
Parachute challenge 3
Successfully complete the "Costa Del Danger" campaign.
Pro Weapon scheme
Successfully complete Test Tube Training.
Sinking Big Weapon scheme
Successfully complete "To Boldly Go" with a "Gold" rank.
Sniper Weapon scheme
Successfully complete "Hook, Line And Skimmer" with a "Gold" rank.
Sticky Wars Weapon scheme
Successfully complete "Beef Cake Breakfast Brawl" with a "Gold" rank.
Super Sheep challenge 1
Successfully complete the "High Stakes" campaign.
Super Sheep challenge 2
Successfully complete the "Plaice Holder" campaign.
Super Sheep challenge 3
Successfully complete the "A Good Nights Sheep" campaign.
Teleporting
In levels where there are objects floating in the air, if you teleport onto them sideways, there is a chance that you will actually teleport inside the object. This is especially true for the green air ships.
Unlock Banana Bomb
Complete Shotgun Challenge 3.
Unlock Bridge Kit
In the Beefcake Breakfast, get the crate on a rooftop.
