The main purpose of the songs were to list all the known Pokémon of a specific generation. The original and Hoenn Pokéraps rhymed; the former had many Pokémon names that rhymed and the latter rhymed normal words together instead of Pokémon names. No rhymes were made in the Pokérap GS, however.
In the first two songs, the evolutionary families would be jumbled up, and sung in different lines or verses. In the Hoenn Pokérap, this rule was not followed; many evolutionary families were sung with two or three of their members back-to-back.
There are three Pokérap songs, one for each of the first three generations. Pokéraps have not been made from the fourth generation onward.
- In the second dub of Pokémon in India, the channel, Hungama TV, made their own version of a Pokérap however, it bears no resemblance to the original Pokérap and is only called as Pokérap because it was subtitled as such.
- In the Japanese version of Pokémon Trading Card Game, Imakuni? mentions that he sings Can You Name All the Pokémon?. In the English localization, he says that he sings the Pokérap.