MMZ made "Gacha" available on May 8, 2016. Gacha is 2 minutes and 9 seconds long and may contain bad words that may be unsuitable for children. Because this song is the only song in Gacha and no other songs are present in the album, we classify this track as a single. In terms of popularity, Gacha is currently below average in popularity. Even with the track produces more of a neutral energy, it is pretty danceable compared to others.

Gacha テンポ

We consider the tempo marking of Gacha by MMZ to be Moderato (at a moderate speed) because the track has a tempo of 115 テンポ, a half-time of 58テンポ, and a double-time of 230 テンポ. Based on that, the speed of the song's tempo is moderate. Activities such as, walking, can go well with this song. The time signature for this track is 4/4.

Gacha キー

This song is in the music key of F♯ Major. This also means that this song has a camelot key of 2B. So, the perfect camelot match for 2B would be either 2B or 3A. While, 3B can give you a low energy boost. For moderate energy boost, you would use 11B and a high energy boost can either be 4B or 9B. Though, if you want a low energy drop, you should looking for songs with either a camelot key of 2A or 1B will give you a low energy drop, 5B would be a moderate one, and 12B or 7B would be a high energy drop. Lastly, 11A allows you to change the mood.