RSB (for mobile)

These type of bosses spawn at a random time on specific locations of the map. Even if you're really strong in an area like lets say Spawn or Neon Tunnel, you still wouldn't be able to defeat Robloxian and Atronicus easily therefore you need help from the higher-levels or even players from the leaderboard.

Realms and where bosses spawn


 * God


 * King Grass


 * Yeti


 * Robloxian


 * Pharaoh


 * Magius


 * Anubis


 * Catalysm


 * Duck


 * Atronicus


 * Mechnical Reactor


 * Earth Devourer


 * Prismo's Soul


 * Zeus


 * Timerus


 * Spooked Alien


 * Zeppelin


 * Balloon


 * Poseidon


 * Moon


 * Sun


 * Synthwave Sun


 * ZfoZ


 * GavG


 * HizH


 * Jade Evilness


 * Obsidian Evilness


 * Super Massive


 * Oblivion Cultist


 * Void Star


 * Dark Star Citadel


 * Devil Jr.


 * Fractured Caller


 * Galaxy Emperor


 * Abominable


 * Tea Time!


 * AfterFood


 * Dethron, Ruler Of Universe


 * Chroma


 * Azure Bridge


 * Golden Bridge


 * Agonio


 * Flockstock


 * Hatvourer


 * Silver Tetramino


 * Golden Tetramino


 * Voidwrath


 * The Born One


 * Spikeable


 * Swordmaster


 * Blocko Kitty


 * Candymaster


 * Clown


 * Cyro-Magma Reactor


 * Citizen01


 * Gold-tron3000


 * Lost Soul


 * Ore Master


 * Cthulhu


 * Greeba
 * Voider