Secrets & Oddities in Sonic Mania's Developer Menu

In this half-hour special on Sonic Mania, we're taking a detour from the channel's regularly scheduled retrospective series to explore the work put into this title in a new way: by messing with tools meant to be seen by developers' eyes only! The Retro Engine Developer Menu is hidden in every retail copy of Sonic Mania sold on Steam and other PC platforms, and by adding a single line of text to the game's Settings.ini file, we gain access to several hidden hotkeys as well as a menu that lets us jump around the game's scenes and toggle settings at any time. Let's explore every nook and cranny of Sonic Mania (Plus) to find hidden details, unintended bugs & glitches, and other oddities! 0:00 My time w/ Sonic Mania 1:16 Intro to Retro Engine 4:57 Activating the Dev Menu 5:36 Basic Functions 6:30 Options 8:14 Debug Flags 9:40 Hotkeys 9:58 Undocumented Function(?) 11:32 The Dev Menu's sub-menus 14:05 Act Oddities 15:20 Cutscene Oddities 16:52 Breaking Time Attack 19:13 Breaking Competition Mode (2D scenes) 24:26 Breaking Competition Mode (other scenes) 27:11 Developer Platform (Vape Mode) 28:16 Developer Platform (Mania/Encore Swap) 31:11 Outro Music used: Sunshine Cassette - Sonic Mania Comfort Zone - Sonic Mania Sonic World - Sonic Jam Green Hill Zone Act 2 - Sonic Mania Door into Summer - Knuckles' Chaotix Havoc Prognosis - Sonic Mania Blossom Haze - Sonic Mania Metropolis Zone - Sonic the Hedgehog 2 Chemical Plant Zone Act 2 - Sonic Mania Head 2 Head - Sonic Mania Oil Ocean Zone Act 2 - Sonic Mania Angel Island Zone - Sonic Mania Plus Double Take - Sonic Mania Plus Guilder Tour - Sonic Mania Plus