Finally a run without unintentional deaths :)

MSM Mod verification with Avidemux:

Green Hill Zone Act 1: 100000

Green Hill Zone Act 2: 10000

Green Hill Zone Act 3: 10000

Green Hill Total: 120000

Bridge Zone Act 1: 10000

Bridge Zone Act 2: 3000

Bridge Zone Act 3: 10000

Bridge Zone Total: 23000

Jungle Zone Act 1: 10000

Jungle Zone Act 2: 10000

Jungle Zone Act 3: 10000

Jungle Zone Total: 30000

Labyrinth Zone Act 1: 10000

Labyrinth Zone Act 2: 5000

Labyrinth Zone Act 3: 10000

Labyrinth Zone Total: 25000

Scrap Brain Zone Act 1: 10000

Scrap Brain Zone Act 2: 3000

Scrap Brain Zone Act 3: 10000

Scrap Brain Zone Total: 23000

Sky Base Zone Act 1: 10000

Sky Base Zone Act 2: 300000

Sky Base Zone Total: 310000

Time Bonus Total: 531000 / 6000 = 88.5 = 1m 28.5

RTA: 20m 29s 034ms - 1m 28s 500ms = 19m 00s 534ms