This same image is also on the Animal I Have Become single cover. On the inside, the CD tray shows all red fish, except one black fish. The cover depicts a string of connected paper dolls with checkmarks on all except one of the figures, in which this represents the album's title. Apar pointed out that Three Days Grace is 'hardly innovative' in their approach to writing music and that 'further distinctive qualities' would help the band separate itself 'from their alt-metal peers'.

The album did receive some negative criticism. The Toronto Star complimented the album with a review title of 'One CD worth buying.' and focused on its lyrics, saying, 'The lyrics really speak out to you, especially if you're going through a tough time in your life.' Allmusic reviewer Corey Apar praised the music, saying it 'remains catchy despite its lyrical darkness'. One-X was met with generally mixed reviews. 'Animal I Have Become' and 'Riot' are both featured on the video game WWE Smackdown vs. Three of the four singles have reached #1 on the Billboard Mainstream Rock Chart. 'Animal I Have Become' was the most-played rock song of 2006 in Canada. 'Riot' was also released as a single in November 2007.

The song 'Pain' was released as a single in September 2006, and 'Never Too Late' was released as a single in July 2007. The first single from the album was 'Animal I Have Become'. 'I Hate Everything About You (Acoustic Version)' (Japanese Bonus Track)ē:53ġ4. 'Running Away' (Japanese and Target bonus track)4:03ġ4. All songs written and composed by Three Days Grace, except where noted.ġ3.

Three days grace first album art