Here is the full list of all 29 Double Dragon: Neon achievements.
Complete any level without taking any damage
Max out a single song to level 50
Defeat an enemy by unlocking his potential
You got 50000 on Double Dragon!?
Beat every level as a Ro-bro
Become the hidden idol!
Dodge and get the Gleam 50 times
Befriend everyone's most favoritest helpful character!
View all pages of the concept art gallery
Grab an enemy out of the air 10 times
Break all of the Skullmageddon monitors in the Rocket Dojo
Defeat Skullmageddon!
Use every weapon once
Knock Abobo into a pit
Upgrade a song at the Tapesmith
Expose the twin bulbs simultaneously
Collect one of each mix tape song
Catch a boomerang thrown by your bro!
Win an airlock battle without attacking
Grab two enemies at once!
Hit Skullmageddon with a hair pick
Knock Williams into a pit
Defeat 4 enemies with a single bat swing!
Nail all enemies with the hair pick
Complete any level in co-op without taking any damage... with friendly fire enabled!
Complete the game without using any Sosetsitsu!
Finish every stage cooperatively on Double Dragon difficulty with friendly fire enabled!
Max out every song to level 50!!
Finish every stage solo on Double Dragon difficulty!