Bowser Jr Wallpapers. To celebrate the popular title super smash bros ultimate, we made a whole slew of wallpapers. The sizes will size most phones and desktops beautifully. Bowser Jr. Wallpapers Wallpaper Cave from wallpapercave.com 1080x1920 phone wallpaper by mrthatkidalex24 bowser jr. A lovingly curated selection of 27 free hd bowser jr. | see more bowser wallpaper, bowser super smash bros wallpaper, koopalings bowser jr wallpaper, dry bowser wallpaper, dark bowser wallpaper, jonathan earl bowser wallpaper.