Top 100 Sonic Mania Videos With The Longest Duration by 5Niner7 GamingTop 100 » 200 » 300 » 400 » 500Video TitleDurationCategoryGame1.SONIC MANIA | Playthrough | Chemical Plant | Parts 1 & 2 / TBT series17:07Let's PlaySonic Mania 2.SONIC MANIA | Playthrough | Green Hills Part 1 & 2 / TBT ( No Commentary )10:53Let's PlaySonic Mania Top 100 » 200 » 300 » 400 » 500