Thanks to lucy5ive for the solutions!
The following is a list in alphabetical order of all the neopets, petpets and items found in the game. The numbers represent how many letters are in their names. The game requires you to identify which neopet, petpet or item corresponds to which clues, and this complete list of all the answers which appear will surely help you out!
Neopets
Acara5 Aisha5
Blumaroo8 Bruce5 Buzz4
Chomby6 Cybunny7
Draik5
Elephante9 Eyrie5
Flotsam7
Gelert6 Grarrl6 Grundo6
Ixi3
Jetsam6 Jubjub6
Kau3 Kacheek7 Kiko4 Koi3 Korbat6 Kougra6 Krawk5
Lenny5 Lupe4
Meerca6 Moehog6 Mynci5
Nimmo5
Peophin7 Poogle6 Pteri5
Quiggle7
Scorchio8 Shoyru6 Skeith6
Techo5 Tonu4 Tuskaninny10
Uni3 Usul4
Wocky5
Zafara6
Petpets
Anubis6
Babaa5 Bearog6
Cobrall7
Doglefox8 Drackonack10
Harris6
Kadoatie8
Meepit6 Meowclops9 Mortog6
Puppyblew9
Slorg5 Snorkle7 Snowbunny9 Spyder6
Triffin7 Turdle6 Turtum6
Warf4
Items
Asparagus
Bagguss Bomberry
Chokato Cornupepper
Faeire Juppie
Loveberry
Marrow
Negg Nova
Purplum
Sardplant Snidberry Starberry
Tigersquash Turnip
Ummagine Usuki
Wartroot
Zeenana