Get a mushroom,fire flower, mini mushroom, 1 up mushroom, mega mushroom,cion block head,tail leaf, and super tail leaf. My best is 14:11. Good luck!
My route:Grab a mushroom in 1-1.Grab the first 2 star coins.Grab the fire flower after the check point.Ground pound the block next to the pipe leading to the third star coin.1-2 Grab all three star coins.Get a mega mushroom and get your 1 ups from the yellow pipe before the rising and falling platforms.1-3 Get 0 star coins and beat the level while grabbing a leaf.1-Tower 0 star coins.Go through the normal exit.Beat 1-4 with 0 star coins.Use all 5 star coins to unlock a seperate path.Beat 1-A with no star coins.Get a mini-mushroom from the toad house.Beat 1-Castle with no star coins.Go to 2-1 and after hitting the checkpoint go to the sub area with the golden flower.Die 5 times from the checkpoint get super leaf.
Got a 12:11 by getting the super leaf in 1-4 instead of at the end,since I'm pretty sure top super leaf speed is faster than top normal speed.Plus the start of 1-4 is closer to a death pit.
I think this would be more relevant here:
I'm sure many have heard the news that Twitch is cracking down on users that have more than 100 hours of uploaded content on Twitch. This affects plenty of speedrunners who might have used Twitch for submissions or simply to store runs. If this change actually comes into effect (April 19th is judgme