Video: Train Whistle Easter Egg in Super Mario Maker

GameXplain has a new video showing a train whistle easter egg in Super Mario Maker.
It’s only found in the New Super Mario Bros ground level theme, and involves the spike trap object.
Check it out below.

He's been playing video games his entire life, and has gotten progressively worse at them as he's gotten older and more decrepit. He's been running this place (into the ground) since 2013. He's old. Keeps writing about Nintendo despite mountains of evidence proving he should never write anything. Very old. Lifelong Nintendo fan, doesn't care what you think about that. Did I mention how old he is? Because he's very old.