Castle Crashers Steam Edition: How To Get All Animal Orbs!

Beholder: Full Moon. With the Cardinal Animal Orb, move towards the second shack during the massive Stove Face fight. Cardinal will then move towards the shack and reveal the Key Sword weapon. Exit out of the level and head out to Blacksmith. At Blacksmith, go in the Animal Ark and towards the far left of the building, where there will be a locked door. Hit the door with the recently unlocked Key Sword and the door will unlock. Enter the door and Beholder will be at the room with nothing in it.
Required: Cardinal and the Key Sword.

BiPolar Bear: Snow World. Play through the level to the end. Using the Horn, an item found before entering Snow World, near the Horn sign at the cave entrance leading to the Ice Castle level and BiPolar Bear will appear.

Bitey Bat: Pipistrello's Cave. Defeat Pipistrello. Pipistrello will then shrink in size, turning into Bitey Bat.

Burly Bear: Tall Grass Field. Right before climbing up the rock wall leading to the Frost King and Cyclops cutscene, there will be a cleverly disguised cave with a giant boulder blocking the entrance. Using the Sandwich item, later found in the game, remove the boulder, and enter the cave. Near the entrance, there will be a cracked wall. Using 2 Bombs, items that can be bought before entering Tall Grass Field or if playing as Conehead, Royal Guard, or Gray Knight, use their Magic Projectile or Air Projectile, to destroy the cracked wall. After doing so, enter the open wall and move to the right, Burly Bear will be there.

Cardinal: Industrial Castle. Defeat the Beefy Brute to obtain it.

Chicken: Medusa's Lair. Located at the near beginning of the level. There will be a dig spot. Using the Shovel, an item found before Medusa's Lair, dig up the spot and Chicken will emerge out of it.

Dragonhead: Insane Store. It can be purchased for 1,100 gold.

Frogglet: Marsh. In the graveyard, right under a mausoleum, there will be a dig spot. Using the Shovel, an item found before Marsh, dig up the spot and Frogglet will emerge out of it.

Giraffey: Desert. Play through the later midpoint of the level. There will be a dig spot. Using the Shovel, an item found in the level itself, dig up the spot and Giraffey will emerge out of it.

Hawkster: Tall Grass Field. Located at the near beginning of the level, after fighting the first group of enemies. There will be a hut with the Horn sign. Using the Horn, an item found much later into the game, near the Horn sign at the hut and Hawkster will slowly appear.

Install Ball: Alien Ship. During the countdown phase of the level, there should be somewhat hard to see doorway. Enter it and Install Ball can be found at the right side of this little room.

Meowburt: Parade. After completing the Parade level or start up the Cyclops' Cave level, exit out of the cave entrance from the very start of the Cyclops' Cave level and Meowburt will be there outside of the cave entrance.

Monkeyface: Can be purchased for 325 gold.

Mr. Buddy: Home Castle. In the very first room of the game, dubbed Barracks, there is a dig spot at the far left of the area. Using the Shovel, an item found later in the game, dig up the spot and Mr. Buddy will emerge out of it.

Owlet: Location: Forest Entrance. Before entering the Thieves' Forest level, there will be musical notes playing near the bushes. Move behind the bushes and Owlet will be there.

Pazzo: Can be purchased for 455 gold.

Pelter: Insane Store. It can be purchased for 1,100 gold.

Piggy: Can be purchased for 290 gold.

Rammy: Tall Grass Field. Defeat the Bear Boss to obtain it.

Scratchpaw: Sand Castle Interior. As soon as the level starts, there will be a cracked wall. Using 2 Bombs, items that can be bought before entering Sand Castle Interior or if playing as Conehead, Royal Guard, or Gray Knight, use their Magic Projectile or Air Projectile, to destroy the wall. After doing so, enter the open wall and move to the far right, Scratchpaw will be there.

Seahorse: Thieves' Forest. Out in the open by the river. Very hard to miss.

Sherbert: Animal Ark. Move to the far left, where the door is located at. Use the Magic Jump or a combo that can elevate the player to reach Sherbert.

Snailburt: Marsh. Similar to Seahorse, Snailburt is out in the open. Located at one of the huts later on in the level. Very hard to miss.

Snoot: Cyclops' Fortress. At the second enclave, which is cracked. Using 2 Bombs, items that can be bought before entering Cyclops' Fortress or if playing as Conehead, Royal Guard, or Gray Knight, use their Magic Projectile or Air Projectile. Alternatively, it's also possible to bait the enemy Coneheads into bombing the wall. Once the wall is destroyed, Snoot will be immediately revealed.

Spiny: Can be purchased for 300 gold.

Troll: Thieves' Forest. During the midpoint of the level, there is a cracked wall with Troll peeking out of it. Using 3 Bombs, items that can be bought right after completing Thieves' Forest or if playing as Conehead, Royal Guard, or Gray Knight, use their Magic Projectile or Air Projectile, to destroy the wall. Troll will be revealed. Note: the Bomb placement is directly on the general area where Troll is floating at.

Yeti: Snow World. Play through the end of the level. Before going up the hill leading to the cave entrance of the Ice Castle level, the Yeti can be found behind the shack with the smoking chimney and side window lights on.

Zebra: Desert Chase. Near the end of the level, there will be a Saracen on a Camel with Zebra. Pursue the Saracen and kill him before he escapes into the sandcastle. Fairly easy to obtain, since the Saracen isn't faster than the player(s) when he's on the Camel.

Golden Whale: Purchase BattleBlock Theater, then immediately start up Castle Crashers after doing so.