Double Dragon Neon

There are 20 different types of Songs and collect 'Mixtapes' to make these Songs 'stronger', 10 of them are part of the 'Sosetsitsu' set and the other 10 are part of the 'Stances' set.

All you have to do is get 1 of each Mixtape for each Song, here is the list of Songs;
Sosetsitsu
- Knee Drop
- Bro Dozer
- Spin Kick
- Fireball
- Dragon Swarm
- One Inch Punch
- Bomb Toss
- Lightning
- Healing Touch
- Song Snatch

Stances
- Balanced
- Training Wheels
- Power Gambit
- Magic Gambit
- Stunner
- Rage
- Weapons Up
- Successive Strikes
- Desperation
- Absorb

The Mixtapes can be bought from shops or they can be obtained from enemies. You shouldn't actually have to buy any of these for this achievement since you'll most likely get it through natural game play, since you only need one of each, but if you're going for the achievement 'Max Fidelity', you'll most likely need to buy them.

Thanks for taking your time to read this guide, and good luck.