Mega Max Bump 2023

Mega Max Bump 2023 in Yokohama was a professional wrestling event promoted by CyberFight's DDT Pro-Wrestling (DDT). It took place on May 3, 2023, in Yokohama, at the Yokohama Budokan.

Thirteen matches were contested at the event, including three on the pre-show, and three of DDT's nine championships were on the line. The main event saw Yuji Hino defeat Yuki "not Sexy" Iino to retain the KO-D Openweight Championship. Other top matches included Tetsuya Endo successfully defending the DDT Universal Championship against Mao, and Shunma Katsumata defeated Jun Akiyama in a toys, ladders, and chairs match to retain the DDT Extreme Championship.

Storylines
The event featured thirteen professional wrestling matches that involved different wrestlers from pre-existing scripted feuds and storylines. Wrestlers portrayed villains, heroes, or less distinguishable characters in the scripted events that built tension and culminated in a wrestling match or series of matches. The event's press conference was held on April 27, 2023, and was broadcast live on DDT's YouTube channel.

Preliminary matches
The event started with three pre-show bouts in which three of the Pheromones stable members took on distinctive opponents in singles competition. In the first one, Yumehito "Fantastic" Imanari defeated Rukiya, in the second one, Illusion defeated Pheromones' leader Danshoku "Dandy" Dino, and in the third one, Koju "Shining Ball" Takeda defeated Yuki Ishida. In the first main card match, Munetatsu Nakamura and Yuya Koroku picked up a win over Kazuma Sumi and Toy Kojima in tag team action. Next up, joshi talent Saki Akai outmatched Rayne Leverkusen. The sixth bout saw Daisuke Sasaki, Minoru Fujita and MJ Paul picking up victories over Soma Takao, Yusuke Okada and a returning Diego. The seventh bout saw Kazuki Hirata deafeating Hikaru Machida in the fourth round of a Martial arts rules match. Next up, Akito, Chiitan and Toru Owashi defeated Antonio Honda and Calamari Drunken Kings (Chris Brookes and Masahiro Takanashi) in six-man tag team action. The next bout saw two of the DDTeeen!! competitors in action as Yuki Ueno and Yuni defeated Takeshi Masada and Ventvert Jack. In the tenth bout, one half of the KO-D Tag Team Champions and The37Kamiina member Shunma Katsumata defeated Jun Akiyama in a Toys, ladders and chairs match to win the DDT Extreme Championship for the second time in his career. Next, Kanon, Kazusada Higuchi, Naruki Doi and Yukio Sakaguchi defeated Harashima, Hideki Okatani, Kotaro Suzuki and Sanshiro Takagi in an eight-man tag team match that served as a preview for the 2023 edition of the King of DDT Tournament.

In the semi main event of the evening, Burning stable leader Tetsuya Endo successfully secured his first defense of the DDT Universal Championship over the other half of the KO-D Tag Team Champions Mao. After the bout concluded, a yet to be revealed competitor who reached out via video laid a challenge to Endo for July 21, 2023. It was mentioned that the mystery wrestler was a former WWE roster member whose name will be revealed on the day of the King of DDT finals on May 21.

Main event
In the main event of the evening, Yuji Hino successfully defended the KO-D Openweight Championship for the second time consecutively in that respective reign against Yuki "not Sexy" Iino.