The dancer is a man with pink skin (different from many of the other dancers, who are usually white). He wears a hot pink gladiator helmet over his pink hair with a horn on top, gold armor straps, dark purple bottoms, a pink fluffy wristband, and pink fluffy boots.
Background
The background is in space with crazy animals (mostly cats) doing crazy things (such as laser shooting), and sometimes it turns in a rainbow with a yellow pony or a colorful tunnel, with watermelons hitting the dancer, who is on a steel rocket that's flying through the air.
Gold Moves
Classic
There are 4 Gold Moves in the Classic routine: Gold Moves 1, 3 and 4: Pull both hands away from your head. Gold Move 2: Jump with your right hand raised and your left hand on your left leg with your feet widened.
Gold Move 1, 3 and 4
Gold Move 2
Gold Moves 1, 3 and 4 in-game
Gold Move 2 in-game
Mashup
There are 3 Gold Moves in the Mashup: Gold Moves 1 and 2: With your arms up, move your arms in a "360" degree angle. (Tribal Dance) Gold Move 3: Tap on your head while moving to the right. (I Love It (Guards Dance))
This and You Spin Me Round (Like a Record) are the only two songs have featured trophies for the PS3/PS4 and Xbox 360/One editions of Just Dance 2015. This one can be gained by getting 5 stars.
In the Party Master Mode, Don't You Worry Child is wrongfully transparent, as the background can be seen through his body.
Unlike other Duet Mashups within Just Dance 2015, the gender sides will change. For example, C'mon, which is female-male, transitions to Moskau, which is male-female.
On the website justdanceworld.com, it was said that Aurélie Sériné would dance to Holding Out for a Hero while she was a VIP on the World Dance Floor.
There is a glitch at the Mashup for Xbox 360, Xbox One and PS4: when you come up and pick the dancer, it actually goes with no players.
When the sword disappears, it kind of glitches out instead of having a smooth transition.
The dancer appeared in the beta icons of some cups in Dance Quest.[2]
At the end of the Community Remix for this song, a thank you message from the Just Dance team will pop up saying: "You are our Heroes. Thank you, see you on Just Dance 2016!"
Plus, two girls from Japan cosplaying as the dancers from Die Young appear in it.
Additionally, during the split part, the screen divides into four parts: the fourth one shows the original coach and is placed at the bottom right, and all the others show various players who try to perform the split. Those players are credited as Just Dancers and their attributed avatar is the one from this song.