Neco-Arc Sound Button is a free Android app developed by Raiden Shotgun in the Lifestyle category. It provides an excellent opportunity to hear the famous "Gurenyuu" meme sound that is often pronounced by Neco-Arc from Tsukihime series. With just a tap of a button, you can prank, troll, and annoy your friends to your heart's content!

The app's interface is simple, with a large button placed front and center. Upon pressing the button, you can hear the sound in three different volumes: Normal, Loud, and Extra Loud. The audio quality is top-notch, and the sound playback is instant. The app's design is sleek and straightforward, making it easy to use for anyone.

Overall, Neco-Arc Sound Button is an excellent app for anyone looking to have some fun with their friends. It's perfect for pranks, and the different volume levels make it even more versatile. If you're looking for a simple app to troll your friends with, Neco-Arc Sound Button is the perfect choice.