News Iizuka: “Sonic Mania Will Feature More Stages Than Any Classic Sonic Game” 22 June, 2017 21 March, 2021
News Iizuka: “Sonic Team Wants To Build A New Internal Standard For Its Products” 8 February, 2016 13 September, 2020
News Iizuka: “There Were Elements [Of Boom Games] That I Was Not Really Happy With” 24 June, 2016 3 March, 2021
News Iizuka: “We Want To Build Sonic Title Which Represents Evolution of Sonic Series The Last 20 Years” 8 February, 2016 13 September, 2020
NewsVideos Iizuka: “We’ll Talk About [Mania’s] Price Point At A Later Date” 17 March, 2017 26 August, 2020
News Iizuka: Chaos Will Return, “Sonic’s World” & Human World Are Separate 11 June, 2017 3 March, 2021
News Iizuka: Grade Schoolers Highest User Demographics Of Mania Digital Downloads Outside Japan 1 May, 2018 8 February, 2021
News Iizuka: Rise of Lyric’s Priorty Was Put Into “Shipping The Title” 8 February, 2016 26 August, 2020
