Underworld Levels

The Underworld levels are unlocked after completing the Main Levels. There are 10 Underworld levels.

You can return to the Main Levels by entering in the gate on the right side.

You can enter on the three gates in the right to join on special levels: These levels include Gems which can be used to zap the final boss for 1 hp for each zap. Zap by barking (Ctrl key press).
 * Puzzle Levels
 * Centipede Levels

Level 1 (Fanatics)

 * 20 Spiders + 1 Spider Queen
 * 5 Fanatics
 * 13 Heal Package
 * 2 Thorns
 * 1 Key Mimic + 2 keys
 * 2 Coins
 * 1 Gem

Level 1 Type B

 * x Spiders
 * etc.

Level 2 (Turtles)

 * 20 Spiders
 * 4 Tortoise
 * 2 Tortoise (Undead)
 * 9 Heal Package
 * 1 Thorns
 * 1 Key Mimic + 2 keys
 * 2 Coins
 * 1 Chest
 * 1 Gem

Level 3

 * 28 Minion
 * 1 Mothership, requiring 22 XP to pass
 * 12 Heal Package
 * 4 Thorns
 * 6 Coins

Level 4

 * 24 Baby Spiders
 * 18-part Centipede (10 XP)
 * 6 Heal Package
 * 2 Thorns
 * 5 Coins
 * 1 Gem

Level 5

 * 17 Spiders + 1 Spider Queen
 * 4 Red Spiders
 * 3 Plants with 3 tendrils
 * 7 Heal Package
 * 1 Thorns
 * 1 Key Mimic + 2 keys
 * 3 Coins
 * 1 Gem

Level 6

 * 17 Spiders + 1 Spider Queen
 * 7 Nosferatu
 * 6 Heal Package
 * 3 Spiked Floor
 * 1 Key Mimic + 2 keys
 * 3 Coins
 * 1 Chest
 * 1 Gem

Level 7

 * Zombie Fidel enemy, requiring 17 damage done. If you ever let the zombie perform a Triple or attack an enemy in a vulnerable state, it resets to 17 damage needed.
 * 17 Spiders + 1 Spider Queen
 * 2 Tortoises
 * 5 Fanatics
 * 6 Heal Package
 * 3 Coins
 * 1 Gem

Level 8
To do

Level 9

 * 18 Spiders + 1 Spider Queen
 * 4 Red Spider
 * 4 Fanatic
 * 1 Tortoise (Undead)
 * 1 Plant with 3 tendrils
 * 7 Heal Package
 * 3 Spiked Floor
 * 1 Thorns
 * 1 Key Mimic + 2 keys
 * 1 Gem
 * 65 XP needed to pass

Level 10 (Nightmare)

 * 11 Nightmare Dragon Body (1 Spike)
 * 11 Nightmare Dragon Body (2 Spikes)
 * 6 Nightmare Dragon Claws
 * 3 Nightmare Dragon Eyes
 * 3 Nightmare Dragon Snout
 * 5 Egg
 * 2 Chest