"bubble (1).wav" by Glaneur de sons of Freesound.org
"Heartbeat, Regular, Single, 01-01, LOOP.wav" by InspectorJ of Freesound.org
"Game Audio - UI SFX" by GameAudio of Freesound.org
"bubble sound" by Ranner of Freesound.org
"1kHz Loud" by shanedk of Freesound.org
"Message Pop Sound" by ImAFoley of Freesound.org
"Dogica" by Roberto Mocci
"Rainy Hearts" by Camellina
"Marlo" by Anna Sergeeva