I believe I have found a bug specifically with the Rainbow Crown in the game a "The Horror Mansion".
When the crown is "eqiuped" and you use a jump coil, you get pushed whilst up in the air.
Not sure if this has something to do with the Crown itself or it's just a game bug that you guys have nothing to do with.
And also I have tested that the "push" only happens when the crown is equiped.