Land on 10,000 NP on the Wheel of Excitement. Play once every two hours.

Land on the star on the Wheel of Knowledge. Play once a day.

Win 1,000 at the Wheel of Mediocrity according to the Neopian Times. Play once every 40 minutes.

One of your items must be turned into sludge at the Wheel of Misfortue. Play once every two hours.

Land on the question mark (after waiting a really long time) at the Wheel of Monotony. Play once a day.

Score 700+ at Advert Attack. Guide

Get 1000+ at Attack of the Slorgs. Guide.

Win a round of Better Than You.

Get 300+ in The Buzzer Game.

Score 1200+ points in The Castle of Eliv Thade

You get this avatar while playing Cellblock. The exact way of getting it is not known. Just keep playing and eventually on the high levels, you'll get it. Guide

Score 1300+ at the game of Chia Bomber.

Get 2500+ points in Destruct-o-Match III.

Score 1000+ Dice Escape. Guide

Score 2500+ points in Dubloon Disaster. Guide

Be in the Top 50 on the Escape from Meridell Castle High Score Board.

Score 250+ at Extreme Herder. Guide.

Score 200+ in Extreme Potato Counter.

Get 2000+ in Faerie Bubbles. Guide.

Get 250+ points in Feed Florg.

Score 1250+ on Freaky Factory. Guide

Score 1000+ at GadGadsGame!!!! Guide (please neomail me if you know of a better one).

Score 900+ in Gourmet Club Bowls. Guide.

Get 1100+ in Grand Theft Ummagine. Guide.

Score 150,000+ at Hannah and the Pirate Caves. Guide1 Guide2.

Score 1000+ in Hungry Skeith. Guide.

Score 14,500 or more at Ice Cream Machine. Guide

Get in the top 50 in the high score table for Korbat's Lab.

Score 3500+ in MAGAX: Destroyer II. Guide

Get on the High Score Board in the top 50 of Math's Nightmare. Guide.

Score 3500+ points at Meepit Juice Break. Guide

Get 3000+ on Meepit vs Feepit. Guide.

Score 1250+ Meerca Chase II.

Send a score of 800+ in Mynci Beach Volleyball. Guide.

Score 250+ points at Petpet Rescue. Guide

Get 2500+ in Petpet Sitter. Guide

Get 800+ points in the Raiders of Maraqua. Guide

Score 5000+ at Snowmuncher. Guide.

Score 10,000+ pts in Snow Wars II. Guide

Score 1200+ or more in Stowaway Sting. Guide

Score 2,000+ at Sutek's Tomb. Guide

Score 3600+ points in Typing Terror. Guide.

Score 100+ at Ultimate Bullseye II.

Score 1500+ points at Volcano Run II. Guide.

score 850+ at Kass Basher. Guide

Score 2250+ in TNT Staff Smasher. Guide

Beat a Devilpuss in Neoquest II. They are in Level 5.

Lose to a plains lupe at the beginning of Neoquest II

Defeat a Bionic Cybunny in chapter 5 of Neoquest II

Give the Clouded gem to Erick the Cybunny in Neoquest I.

Solve the Alatador Mini-Plot and head over the Council Chamber and click on Altador. You will get the sidebar OR the avatar, but don't panic! If you go back the next day you'll get the other one too. It is still possible to finish this plot and get the avatar if you have not done so yet. Guide.

Win 10 or more games in a row at Bilge Dice

This is a random event when you score a perfect 24 at Bilge Dice

Random when you win something in Buried Treasure. Guide.

Play Cheat and catch Capara cheating in the first round

Random when you win at Cheese Roller in under 60 seconds. Guide.

Lose at cliffhanger

Random when you knock down a coconut in the Coconut Shy game.

Tie with Count Von Roo and win the next roll of Deadly Dice. You can only play once a night between Midnight-1AM NST
(BE CAREFUL! after you get the avatar, if you go back, tie and then lose, you will lose your avatar too)

Win a Deserted Fairground Scratchcards.

Random when you find an item or the treasure in the Deserted Tomb in The Lost City of Geraptiku.

Get the jackpot at Dice-A-Roo. This is not as hard as it sounds.

Get 320+ in Double or Nothing and collect the winnings

Finish the Faerie Crossword.

Win at Gormball.

Random when you guess 4 correct numbers in Grarrl Keno.

Win an Ice Caves Scratchcard game

This one is tricky: You can get it in 2 ways. Complete mission 7 of Invasion of Meridell in one month OR it's random while playing after battle 8 after the first month. Guide

Random when you win Kacheek Seek.

Feed 75 Kadoaties at the Kadoatery. Guide!

You must impress King Hagan with your wisdom and score over 750.

Tell King Skarl a bad joke so he kicks you out of the castle.

Tell King Skarl a joke that puts him in hysterics. Somewhere between 650pts-800pts. All in all, this av has been debated and the only thing agreed on is that it's random when he is.

Win 4 or more rounds of Kiss the mortog. Keep at it, it's not that hard.

Win a Lenny Conundrum. Good luck.

RANDOM when you pull the Lever of Doom.

Get 6 non-Dung items When you play Pick Your Own. Guide

Bet on the winning Poogle at Poogle Races.

Get on the High-Score Board of Plushie Tycoon. Guide.

Win a Random Contest.

Flood Level 50 of Sewage Surfer and then end the game. Don't finish the level if you want the av. Guide.

Beat level 5 of Shapeshifter and go back to the main page to collect the av. Guide.

Score points in 250 different games and visit your High Score page.

Win at least 15 times in Tyranu Evavu

Catch a Titanic Squid at Underwater Fishing. Guide.

Own a Halloween Lupe and go to it's lookup.

Feed an aquatic petpet to your jetsam. yummy.

Equip your grarrl with a boney grarrl club. These are nearly impossible to find and very very expensive.

Own a Coconut JubJub and feed it any Tropical Food. A Coconut JubJub is NOT an Island JubJub.

Feed your Skeith any item with the word 'Skeith' in it.

Take your Kackeek to the beach on Mystery Island.

Feed your elephante a bag of peanuts.

Equip your Pea Chia with a Super Pea.

View your Orange Grundo's lookup

Own a grey pet and go to its lookup.

Bless your Shoyru with a bottled Faerie.

Feed your Lenny any kind of spooky food.

View the lookup of your Tuskaninny while you have something with the word 'Spotted' in your inventory.

Take your pet (not petpet) Krawk to the Fungus Cave on Krawk Island

Own a shoyru, & win against anything in the Battledome.

Take your Draik to the Draik Nest.

Own a fire blumaroo that has had a fire petpet attached to it for a minimum of 30 days and go to its lookup. If the fire petpet is an avatar petpet like Mazzew, Snicklebeast, Harris etc it will only give you the avatar until it has reached the age in which it gives the petpet avatar.

View the lookup of your Halloween Ruki that has a mummy baby petpet older than 30 days attached to it.

Own an Island Quiggle that is 30+ days old and view its lookup.

Go to the lookup of your Snow Pet, which is 100+ days old.

Complete a Fountain Faerie Quest (these are random) then paint your buzz at the Rainbow Fountain

Feed your pink pet anything with the word 'popcorn' in it.

Have 10 different items with the word 'dung' in your inventory and refresh until you get it. Here are some cheap ones (under 1,000):

Pile of dung
Dung Shield
Dung Box
Dung Jelly
Half Eaten Dung Jelly
Dung Meepit Plushie
Rancid Dung Coffee
Dung Cream Sandwich
Dung Shelf
Dung Sofa
Rainbow Dung

Have Chokato (TCG) in your inventory and refresh until you get it.

Have 8 different orange items in your inventory and refresh until you get it. Here's a list of some cheap ones (all under 1,000):

Orange Fuzzle
Orange
Bottle of Orange Sand
Orange sweetie
Red and Orange Year Eight Balloon
Non-Magical Orange Chia Pop
Orange Chicken
Long Orange Dress
Orange Skeith Stamp

Refresh you inventory with one of the following very expensive items:

Sword of Skardsen
Mystery Fruit Bowl
Mystery Palm Shield
Tiki Armour
Meukas Snot Trail

WARNING! This is very risky. Each time you refresh, your item may be stolen by the Pant Devil. Go slowly and only refresh as many times as you need to. I would also buy at least 10 Pant Devil attractors and fill up the rest of my inventory with junk.

Have all 10 original codestones in your inventory:
Tai-Kai, Lu, Eo, Main, Zei, Orn, Bri, Har, Vo, Mau.

Have a Malevolent Sentient Poogle Plushie (TCG) in your Inventory.

Buy a rarity 90+ item from the Chocolate Factory. Here's a list:

Rarity-90
Mint Chocolate Kacheek, Dark Chocolate Poogle, Orange Chocolate Scorchio, Juppiemint Bar, Charcoal Jelly Beans, Brussel Sprout Jelly Beans, Lemon Sherbert Jelly Beans, Sweet Necklace, Peophin Chocolate Medallion, Buzz Chocolate Bar
Rarity-91
Mint Chocolate Lupe, Dark Chocolate Shoyru, Ummagine Candy Cane, Raspberry and Vanilla Nova
Rarity-92
Mint Chocolate Blumaroo, Dark Chocolate Skeith, Strawberry Fondant Surprise, Fluff N Stuff Grarrl Gobstopper, White Chocolate Nova
Rarity-93
Mint Chocolate Chia, Apple and Custard Drops, Kau Sundae
Rarity-94
Mint Chocolate Peophin, Minty Choccywhip, Bullseyes
Rarity-95
Super Spicy Jelly Beans , Yummy Drops
Rarity-96
Hazelnut Whirl, ErgyFruit Jelly Beans, Chocolate Peach, ErgyFruit Jelly Beans
Rarity-97
Creamy Choccywhip, Spooky Flying Doughnut, Omnipotent Onion Grarrl Gobstopper, Caramel and Custard Drops
Rarity-99
Neotruffle, Deluxe Strawberry Toffee Chokato, Fishy Delight Grarrl Gobstopper, Double Chocolate Jelly Beans

(credit: silverwings42)

Buy something from the Hidden Tower.

Buy a rarity 80+ item from Uni's Clothing Shop. Here are SOME of the items that work:
Red Cap
Blue Cap
Green JubJub Cap
Orange Cap
War Chia Top
Jubjub T-shirt
Yellow Mortog T-Shirt

Feed your pet a snorkle snout. Yum.

Look up the Weather on Terror Mountain while you have an icy snowflake in your inventory.

Use a Transmogrification potion on your pet. Ew. The cheapest is usually Moehog or Buzz Transmogrification Potion.

Have all the stamps for the Lost Desert in your Stamp Album.

Have all the stamps for Tyrannia in your Stamp Album.

Have all the stamps for The Haunted Woods in your Stamp Album.

Have all the stamps for Virtupets in your Stamp Album.

Have all the stamps for Mystery Island in your Stamp Album

Have all the stamps for Snowy Valley in your Stamp Album

Play with a Blue Evil Fuzzle until your pet gets scared.

Go to Niten Hiroru's Neopedia Article when you have the Niten Hiroru card in your inventory.

Visit Vira's Page in the Gallery of Evil while you have a mirror of any kind in your inventory.

Use any morphing potion on your pet (NOT a Transmogrification potion, that does something else).

Play with a Faerie Queen Doll.

Have a Fire Paw card in your Neodeck.

Feed your pet any kind of drink.

Feed your pet anything with the word garlic in it. It's random so it may take a few tries.

Have any broken toy repaired at Donny's Toy Repair Shop.

Have anything with the word 'bread' in your inventory and bring it to Techo Mountain.

Feed your pet any food with the word 'carrot' in it.

Have anything with the word 'Gnome' in your inventory and then head over to the Garden Shop.

Have any maractite weapon in your inventory then go view King Kelpbeard's TCG.

Have your pet break open a Pinata Toy. Some of the pinatas are actually furniture items, not toys. Only the toys will work. Here is a list of them:
Vira Pinata, Hubrid Nox Pinata, Meuka Pinata, Balthazar Pinata,
Turmaculus Pinata, Boochi Pinata, Grundo Pinata, Chuckles Pinata.

Equip a Dark Nova Battledome Item to your neopet.

Equip any Haunted Weaponry item to your pet.

Groom your pet with any kind of grooming item.

Donate a plushie to the money tree, but don't use quickstock.

Have a Zafara Double Agent Plushie in your inventory and search for Zafara Double Agent in your sidebar search.

Have an item with the word ring in your inventory, then go to Nabile's neopedia article.

Have an item with the word scarab in your inventory, then only have 1np and visit the 2nd page of How to draw Tomos.

Put a piece of Robo furniture in your Neohome.

Feed your pet any item with the word 'Custard' in it. You can also change your language to portuguese and then feed your pet any item with the word cream in it.

View the lookup of a starry gelert while having an item with the word starry in it in your inventory. Try these pets: Tufy27, SilasStars.

Have any scorchio plushie in your inventory and view the tcg collection of someone who has the scordax tcg: Pinkcaddy.

View the lookup of a plushie cybunny with any plushie in your inventory.

Feed your pet a speckled food.

View the lookup of a Halloween Moehog while you have any Sloth item in your inventory: Slothydoo, Sphyroz.

View the lookup of a painted Koi while you have a Koi Plushie in your inventory:Katarinha.

View the lookup of an aged pink Kau while you have a Crystal Ball of some kind in your inventory. Try sabletwo.

Feed your pet some food between 3-4 am or pm NST.

Have 1000 different items in your Safety Deposit Box. Guide.

Buy a mote of 70+ rarity from The Brightvale Motery. The list incudes:
Air Mote
Ash Mote
Dirt Mote
Dust Mote
Hair Mote
Ice Mote
Lava Mote
Neopian Mote
Plushie Mote
Robot Mote
Snow Mote
Wood Mote