Pronunciation For The Word Poptropica I'm Trying To Figure Out How This Word Would Look Like In Pronunciation Key Form. Help Please?

I'm trying to figure out how this word would look like in pronunciation key form. Help please? - pronunciation for the word poptropica

The word that I'm doing a Braceyism debate is the key. Yes, it is random, but it is the point. You know how at the beginning of the dictionary a lot of fun looking for the place where they have the pronunciation of the word? In the case of some cards are down, and lines on them? That's what I'm trying to do with this word. Please help! I like noise! Thank you.