User blog comment:Andrew0218/Red vs Giygas. Monstrous Rap Battles/@comment-5264252-20150201184432/@comment-5264252-20150202174813

Andrew's series is monsters vs monsters that are similar in some way. Pokémon and Digimon are both monster franchises that have been rivals since they were created, with Pikachu and Agumon being the mascots of either franchise. Lot of history there.