Nintendo Switch Grip (Use Promo Code MOH5 for 5% Off!) Marx is a boss in Super Smash Bros Ultimate (who comes from the Kirby Series). You can't use Final Smashes on any bosses during the adventure mode or classic mode but with a bit of modding, it's quite possible to do! So, in case you're wondering who can defeat Marx with their Final Smash or even use a Final Smash on a Boss, this video got you covered! Claude 1308 Twitter: Claude Youtube Channel: ▶️SMASH ULTIMATE PLAYLIST Follow me on Social Networks! 🔴TikTok: @Master0fHyrule 🔴Instagram: 🔴Twitter: 🔴Facebook: 🔴Twitch: ⚫More Smash Bros Mod Videos ⚫Breath of the Wild Playlist ⚫Nintendo Switch Videos ⚫Mario Kart 8 Deluxe Videos