All sounds are from freesound.org

break - https://freesound.org/people/kevinkace/sounds/66771/

bump - https://freesound.org/people/zmobie/sounds/319809/

electrocute - https://freesound.org/people/JoelAudio/sounds/136542/

explosion-big - https://freesound.org/people/animationIsaac/sounds/207322/

explosion-small - https://freesound.org/people/thehorriblejoke/sounds/259962/

powerup - https://freesound.org/people/GameAudio/sounds/220173/

shot - https://freesound.org/people/josepharaoh99/sounds/389590/

splash - https://freesound.org/people/rombart/sounds/186747/

splash-heavy - just splash but lower