Just the two of them made these fonts.
Links to these fonts:
HackFonts: http://www.fontspace.com/hackfonts/slugterra
Heaven Castro: http://www.fontspace.com/heaven-castro/mamukpokterra
Please notice that these file names are all in Tagalog.

Eli Shane is determined to be the greatest Slugslinging hero of all. But in order to defeat the forces of evil, he must collect, train and duel with little critters called slugs, which transform into powerful magical beasts. Eli and his crew explore the caverns, challenge rivals and one another to friendly duels, and upgrade their gear in their underground world. But there is a threat to Eli and the slugs -- Dr. Blakk wants to transform the slugs into feral mindless weapons. No one has been able to stand up to Blakk's army of henchmen ... until now.

Kami ang Mamukpokterra. Mamukpok is Tagalog term of slug. Tagalog meaning is exactly, Slugterra. Ok, that's enough doing to know, and thanks. - heaven

<style type="text/css">
@font-face{
    font-family:"mamukpokterra";
    src:url("https://candyfonts.com/wp-data/2019/03/04/25421/Mamukpokterra.otf") format("woff"),
    url("https://candyfonts.com/wp-data/2019/03/04/25421/Mamukpokterra.otf") format("opentype"),
    url("https://candyfonts.com/wp-data/2019/03/04/25421/Mamukpokterra.otf") format("truetype");
}
htm_tag{font-family:"mamukpokterra";font-size:60px;text-transform:none;color:#F32951}
</style>