I honestly don't know what to call this effect because I had no idea what is it called. This was a bit similar to that Hallelujah effect though. Feel free to use it. Created in 3ML Editor and edited it in Audacity.
哇Sound.wav
聲道：2
類型：wav
reverb、choir、artificial、effect、wow、sfx、sound
混響、唱詩班、人造、影響、哇、SFX、聲音
資料來源：freesound ( https://freesound.org )