The full package 8-BIT loop music is perfect for retro action game.
Over 40 Tracks, wave files at 44,100 Hz, 16 Bit, Stereo.
For Unity Users!
www.assetstore.unity3d.com/jp/#!/content/20224
For Not Unity Users!
https://moppysound.booth.pm/items/41261
Enjoy a nice game production!