[SMM1] 駆け抜けるだけの10秒マリオ【10sec】(last uncleared 2016 level)

This was the last uncleared level from 2016 (excluding impossible levels).
ID: 73EE-0000-02D5-FE4B
This is raw, unedited footage of me clearing this level, not because I didn't want to edit it but because it's more authentic this way, trust me.
The level itself is actually not that hard and just requires doing a relatively precise input three (3) times in a row. It's just insane that this level seemingly requires tech that nobody knew. Only an accidental find of this tech from gravityrad on discord made it possible to clear this level.
The only inputs required as far I know are a jump+run input into the brick block, followed by a spin immediately after. The duck jump I did in this clear video is not required. I assume the fireball throwing animation causes mario's hitbox to change which allows for an immediate spin jump.
Join the 0% Discord if you're interested in levels like this and the task of clearing every Super Mario Maker 1 level before the servers shut down in April: / discord