Advert Attack		 nopopups - Type during gameplay to clear all popups. Once per game.

Attack of the Gummy Dice		 delightful - Type during gameplay to change the current dice into a morph dice. Once per game.
explode - Type during gameplay to change the current gummy dice into bombs. Once per game.
gummydice - Type during gameplay to change the current gummy dice to a different random color. Once per game.

Attack of the Revenge		 blackpawkeet - Type during gameplay on level 3 or higher to gain an extra life. Once per game.

Attack of the Slorgs		 marrow - Type during gameplay for an extra life. Once per game.
chargex4 - Type during gameplay to show the laser. Unlimited use.

Bouncy Supreme		 r - Typing during gameplay will turn on or off the Pterodactyl radar tracker.
bouncebouncebounce - Type during gameplay for an extra life. Once per game.

Bruno's Backwoods Getaway		 lookoutbruno - Type during gameplay for an extra life. Once per game.
monstermovie - Type during gameplay to turn the game black and white. Type again to go back to color.

Carnival of Terror		 piecrust - Type during gameplay to fully restore ammo. Once per game.

Castle Battles		 supercannonball - Type during gameplay for a massive cannonball. Once per game.

Chia Bomber 2		 geoffrey - Type during gameplay or during level breaks for an extra life. Once per game.

Crisis Courier		 kingaltador - Type during gameplay for an extra life. Once per game.
Clicking the little, black window in the bottom left corner of the title screen will load a level with structures that spell out "Weepit was here." (It's not much of a level, though.)

Deckswabber		 vitaminc - Type during gameplay to gain full health. Once per game.

Destruct-o-Match II		 destroyboulders - Type during gameplay to clear all boulders of a color or inbetween levels for 250 free points. Once per game.
boohooiwanttheoldgameback - At the mode screen, type in this cheat for the old version of Destruct-o-Match.

Dice Escape		 topdown - A view of the game from above. (Type again to undo this view.)
moretimeruki - Type during gameplay to reset the timer. Once per game.
helpmeplease - Type during gameplay to reset the timer. Once per game.
flybywire - Type during gameplay for a "wire" view of the game. (Type again to undo this view.)

Dubloon Disaster		 scallywags - Type during gameplay to create a whirlpool. Once per game.

Edna's Shadow		 Edmoretime - Type during gameplay to add 25 seconds to the timer. Once per game.

Escape from Meridell Castle		 valrigard - Type during gameplay to reset the clock. Once per game.

Escape to Kreludor		 empulse - Type during gameplay to have an empulse effect. Once per game.

Extreme Herder		 freeze - Type during gameplay to freeze Balthazar. Once per game.

Faerie Bubbles		 bubbles - Type during gameplay to turn all bubbles into one type. Once per game.
faerieland - Type during gameplay to turn the bubble in the cannon into a Rainbow Bubble. Once per game.
slumberberry - Type during gameplay to push the bar up to the top. Once per game.
stardust - Type during gameplay to turn the bubble in the cannon into a Nova Bubble. Once per game.

Faerie Caves II		 quaglor - Type during gameplay to skip to the next level.

Faerie Cloud Racers		 snowfaerie - Type during gameplay to clear all obstacles. Once per game.

Alternatively, if you are using the Fire Faerie racer, you can just type "firefaerie," or if you are using the Dark Faerie racer, you can type "darkfaerie," etc. But "snowfaerie" works for all types of racers.

Flycatcher		 deliciousflies - Type during gameplay for a free life. Once per game.

Frumball		 kougra - Typing when the level is beginning will skip the level.
frumball - Type during gameplay for an extra life. Once per game.

Gourmet Club Bowls		 shepherd - Type on the main screen for double the points!
superbowl - Type during gameplay to skip the level.

Grand Theft Ummagine		 ummaginethief - Type during gameplay to skip the level.

Gwyl's Great Escape		 gwylsgreatestescapeever - On the main screen, click 'Continue Game' and type in this phrase to play a secret level.

Hasee Bounce		 doughnutfruit - Type during gameplay to reset the clock. Once per game.

Hannah and the Pirate Caves		 tellaport - Typing this will restart the level.

Ice Cream Machine		 strawberryvanillachocolate - Type during the level breaks for an extra life. Once per game.

Igloo Garage Sale - The Game		 frozensnowflake - Type during gameplay to be able to drop 7 items instead of 5. Once per game.

Itchy Invasion		 pest - Type during gameplay to restore your Pest-B-Gone to full. Once per game.

Jelly Blobs of Doom		 rainbownegg - Type during gameplay for a 20 point Rainbow Negg. Once per game.
fishnegg - Type during gameplay for a 50 point Fish Negg. Once per game.
marissa - Type on the screen with "Press the spacebar to play" and the text (Now are you happy?) will appear.
Typing random letters will generate massive blue blobs of jelly.

Jolly Jugglers		 magicjugglingballs - Type during gameplay for an extra life. Once per game.
Click on the Drackonack's eye to play the secret Drackonack Attack! level.

Kiko Match II		 ineedmoretime - Type during gameplay for a free fifteen seconds. Once per game.

Kreludan Mining Corp.		 kreludor - Type during gameplay for an extra life. Once per game.

Korbat's Lab		 spiderbite - Type during gameplay for an extra life. Once per game.

Kou-Jong		 cyodrake - Type during gameplay for an extra hint. Once per game.

Let It Slide		 stalactites - Type during gameplay for an extra life. Once per game.

MAGAX: Destroyer II		 xagam - Type during gameplay to gain full health. Once per game.

Maths Nightmare II		 letimiyasleep - Type during gameplay for a time bonus. Once per game.

Meepit Juice Break		 juice-o-matic - Typing during gameplay will reset all of the Meepit's timers. Once per game.
meepits - Type during gameplay for an extra life. Once per game.

Meerca Chase II		 ferociousneggsareontheloose - On the main screen, select Hard mode and type in the cheat for a secret mode.
superextrahypergravitymode - On the main screen, select Hard mode and type in the cheat for a secret mode.

Moon Rock Rampage		 rampage - Type during gameplay for an extra life. Once per game.
superlaser - Type during gameplay for double laser range on that level. Once per game.
novisitors - Type during gameplay for an extra 30 seconds. Once per game.

Mootix Drop		 After selecting the mission's difficulty, press "up," "right," "up," "right," "up" using your keyboard arrow keys. Use the "left" and "down" arrow keys to change the symbols in each of the three spaces. Possible combinations and effects are as follows:

Babaa, Mootix, Spyder - Makes the Mootix bigger.
Babaa , Target, Spyder - Makes the Mootix heavier and gives you an extra 5 points.
Mootix, Target, Babaa - Makes the controls backwards and gives you an extra 10 points.
Mootix, Target, Mootix - Makes the Mootix smaller.
Spyder, Target, Babaa - Makes the Mootix lighter.
Spyder, Target, Mootix - Makes the Mootix faster.
Spyder, Target, Target - Makes the Mootix never land.
Target, Mootix, Babaa - Makes the Mootix invisible and gives you an extra 5 points.
Target, Target, Spyder - Gives access to the Spyder level and gives you an extra 8 points.

Mynci Beach Volleyball		 dirigibles - Type during gameplay to make a kiko balloon fly across the screen.
turdle - Type during gameplay to get a Turdle on your opponent's side. Once per game.

Neverending Boss Battle		 foreverandeverandever - Type during start up to get an extra life.

Petpetsitter		 oscillabot - Type during gameplay for an extra life/attempt. Once per game.

Raiders of Maraqua		 1morekarpohplease - Type during gameplay for an extra life. Once per game.

Scourge of the Lab Jellies		 boomshaketheroom - Type during gameplay to get extra bombs after your next move. Once per game.

Snowball Fight		 snowghettiandmeatball - Type during gameplay for an 10 snowballs. (Most useful when you have less than 40 snowballs) Once per game.

Snowmuncher		 buuuurrrrrrrrp - (1 B, 4 U's, 8 R's, & 1 P) Type during gameplay to gain 50% health back. Once per game.
dieter - Typing this will multiply your score by 100, but it will not send that amount.

Sophie's Stew		 hungrymeowclops - Type during gameplay for an extra life. Once per game.

Spell or Starve		 channyhungry - Type during gameplay for an extra 30 seconds. Once per game.

Stowaway Sting		 scrap - Type during gameplay to gain full health. Once per game.

Sutek's Tomb		 pyramibread - Typing during gameplay will give a hint an available combo.
plzsutekcanihavemoretime - Type during gameplay for an extra 30 seconds. Once per game.

The Buzzer Game		 salamander - Type while the timer is ticking to skip a level.

The Castle of Eliv Thade		 rehaxtint - Type during gameplay for an extra hint. Once per game.

The Great Qasalan Caper		 caperiffic - Type during gameplay for a time bonus. Once per game.

The Return of the Return of Dr Sloth		 drfranksloth - Type during gameplay for an extra life. Once per game.

The Last Smiley		 :) - Type during gameplay for a first person view.
0:-) - Type during gameplay to skip a level. Once per game.
*catfish* - Type during gameplay for an extra life. Once per game.

The Usul Suspects		 lumiwatergun - Type during gameplay for an extra life. Once per game.

Tyrannian Mini Golf		 When choosing a character, press the "tab" key on your keyboard four times, then press "enter" to play as Oliver, The Phantom Orange Shirt Guy.

Tug 'O' War		 f - Type during gameplay on Level 2 or later and blood will spurt from the water coating the screen momentarily, with white text that says "Oh Yeah!". A voice will also say "Fatality!" Once per level.
lrslsts - Type after selecting Thiebos to play as him.
sltltsr - Type after selecting Khadir to play as him.
sslrtrl - Type after selecting Ramset to play as him.
lrlrss - Type after selecting Horak to play as him.

Ultimate Bullseye II		 catapult - Type during gameplay for a free powerup. Once per game.

Usuki Frenzy		 Press your Space Bar in front of the computer in the top right-corner room and a Ballerina Usuki will appear somewhere randomly in the room.

Volcano Run II		 glubgar - Type during gameplay for an extra life. Once per game.

Warf Rescue Team		 trappedkadoaties - Type during gameplay for an extra life. Once per game.

Whack - A - Staff Member		 a5paragu5 - Type during gameplay for a bigger mallet. Once per game.

Wicked Wocky Wobble		 wocky - Type during gameplay when you have at least four items and a Buzz will drop down and freeze your stack for a few seconds, provided he lands on your stack.

Zurroball		 Click the "N" on the spinning Grundo's suit to access the secret ball.
taken from Jellyneo.net