Oppa Xmaxx Style! is a hidden achievement that could be completed by racing 250 times in a session with a holiday car during the 2012 Xmaxx Event. Rewards "Oppa Xmaxx Style!" +40 Achievement Points Trivia It is based off of the song "Gangnam Style ," which was very popular at the time this achievement was available. Retrieved from "https://nitro-type.fandom.com/wiki/Oppa_Xmaxx_Style!?oldid=103436" Categories: Achievements Hidden Achievements Event Achievements Holiday Achievements 2012 Xmaxx Event Session Achievements Title Achievements Community content is available under CC-BY-SA unless otherwise noted.