Here is a list of neggs and their effects.

Negg Cost Effect

Basic Power Negg		 39 Tokens May give you 1 defense.

Blue Furry Negg		 15 Tokens Will give your NeoPet 5 HP.

Bang Bang Negg		 33 Tokens Gives your a random snowball or snowballs.

Cackiling Negg		 96 Tokens In the battledome it gives shadown health ability
in the battledome regardless of your NeoPets level. (single use)

Christmas Tree Negg		 27 Tokens Will give your NeoPet 20 hit points back.

Confusion Negg		 64 Tokens In the battledome it gives your NeoPet Phsycic Powers or
the ability to confuse in the battledome regardless of your NeoPets level.
(single use)

Cool Negg		 247 Tokens Gives your NeoPet 1 level and 1 strength, or movement,
or hitpoints. (only gives 1 of the 3)

Cracked Negg		 90 Tokens In the battledome your NeoPet gets +3 DMG or +3 HP or random
full healing. (single use)

Crystal Negg		 22 Tokens This negg will give your NeoPet back 8 HP.

Evil Negg		 42 Tokens This is a battledome weapon that attacks 2 dark and
1 physical icon. (single use)
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