The title credits are sung bi-lingualy, some episodes being in Puffy's native Japanese, others being in English.
In the episode "Lightspeed", the Hive Five takes over the opening credits.
The Japanese lyrics occasionally featured in the opening credits are not a direct translation of the English lyrics. A translation of the Japanese lyrics appears in "Teen Titans: Trouble in Tokyo (2006)"
In the episode "Fractured" the character of Larry pops up during the opening titles.