Flight Reverse Mode reverses the natural set-up for altitude, so that tilting the analogue Stick down causes the machine to dive, while holding it up makes the machine climb. Six of the series from "A.C.E." return in "A.C.E. 2", joined by five new ones (although one of the new series, "Endless Waltz", is the sequel to one of the series that did not return from "A.C.E." and "Gundam Wing"). Additionally, three EX Series are included, although their involvement in the game's story is not as significant as the other series (excluding "Wings of Rean", which is announced to join the series in later promotion video, and have its ONA released after the game). A grand total of 106 playable mecha from the fourteen anime represented, as well as the originals, are playable. In addition to the fourteen series, "A.C.E. 2" includes new original characters and mecha, designed by Takuya Saito and Junya Ishigaki, respectively. The heroes of the game are Tak Kepford (voiced by Daisuke Kishio) and Marina Carson (voiced by Naomi Shindou), and they pilot transforming mecha called "Gun Arks". The game's opening theme is "Glorious" by Rina Aiuchi; its ending theme, also performed by Aiuchi, is "Precious Place". "A.C.E. 2" follows the musical style of its predecessor, using remixes of themes from the featured anime along with several new songs composed for the game. However, "A.C.E. 2" uses much more faithful remixes of the songs borrowed from anime, while "A.C.E." used more rock and roll-styled remixes. The theme songs for each series are:  The August 2007 issue of Famitsu announced a special vocal version of "A.C.E. 2", which will be released on November 29, 2007. Like its sequel, "A.C.E. 3", the theme songs of each respective series will be replaced by their original vocal themes.