Ace 2 Look up ACE2 in Wiktionary, the free dictionary. Ace 2 may refer to: Angiotensin-converting enzyme 2 (ACE2) Samsung Galaxy Ace 2, a smartphone Ace 2 (video game), Air Combat Emulator II, a video game released in 1987 See also[edit] Search for "ace-2" on Wikipedia. Ace (disambiguation) Topics referred to by the same term This disambiguation page lists articles associated with the title Ace 2.If an internal link led you here, you may wish to change the link to point directly to the intended article.