Are there only certain items that work for the achievements? Or did I do something wrong? I used r99 jelly beans and r99 bloodred paralix hand puppet and nothing happened. Please and thank you for any help!

Are you sure that your pet ate the jelly beans and played with the puppet? You should have gotten the achievement if your pet successfully ate/played with those items.

just realized pet would not play with the toy...so played with another and got that one! But yes pet did eat jelly beans and nothing ..fed to Cardovia and they show on the food list

I see what the problem is. Jelly beans is not a r99 item anymore. Its rarity tag says "holiday item" now. If you feed your pet with a rarity 99 food, you should get the achievement. Next time, pay close attention to the rarity.

subetalodge has it listed as r99....thank you so much for your help! :)