Technically speaking, no version of MAME was released with support for both Akai Katana and Dodonpachi Saidaioujou. Akai Katana (2010/ 8/13 MASTER VER.) went into MAME on Oct 31 2017. It was released with MAME 0.192 (Nov 29 2017) and remained in MAME through MAME 0.239 (Dec 29 2021). However, the ROM definitions for DoDonPachi SaiDaiOuJou (2012/ 4/20) went into MAME on Dec 30 2021, just a few days from the beginning of the MAME 0.240 development cycle. The ROM definitions for Dodo