Lord Kundun (spawns at 26 76 coordinates in Kalima 7) - respawn 16 hours
Medusa (spawns at 130 28 coordinates in Swamp) (also appears in the Castle and Island) - respawn 16 hours
Selupan (spawns in a special boss location, the entrance to which is in Raklion) - respawn 24 hours
Balgass (appears in Crywolf during the event) - respawn 24 hours
Rahuu (spawns at 239,161 coordinates in Aida 2) - respawn 16 hours
Fallen Angel (spawns at 19,219 coordinates in Tarkan 2) - respawn 16 hours
Calipso (spawns at 73,91 coordinates in Kanturu 1) - respawn 16 hours
Numinax (spawns at 41205 coordinates in Raklion) - respawn 16 hours
Collaps (spawns at 19854 coordinates in Karutan 1) - respawn 16 hours
Titan (spawns at 137,192 coordinates in Karutan 2) - respawn 16 hours
Cratos (spawns at 112,133 coordinates in Lost Tower 4) - respawn 16 hours
Collos (spawns at 73,86 coordinates in Raklion) - respawn 16 hours
Cent (appears at random coordinates in Nars) - respawn 16 hours
Lord of Ferea (appears at random coordinates in Ferea) - respawn 16 hours
Core Magriffy (spawns at random coordinates in Kubera Mine) - respawn 16 hours
Lord Silvester (spawns at random coordinates in Urk Mountain) - respawn 16 hours
Nix (spawns at random coordinates in Nixies Lake) - respawn 16 hours
God of Darkness (spawns at random coordinates in Swamp of Darkness) - respawn 16 hours
Ferea General (spawns at random coordinates in Ferea) - respawn 16 hours
Sellihoden (spawns at random coordinates in Deep Dungeon) - respawn 16 hours
Ukanva (spawns at random coordinates in Atlants Abyss) - respawn 16 hours
Silla (spawns at random coordinates in Scotch Canyon) - respawn 16 hours
Normus (spawns at random coordinates in Acheron 2) - respawn 16 hours
Muff (spawns at random coordinates in Debenter) - respawn 16 hours
King Leoric (spawns at random coordinates in Lorencia) - respawn 12 hours
Lazarus (spawns at random coordinates in Noria) - respawn 12 hours
Evil Santa (spawns at 239,235 coordinates in Aida 2)(also appears in the Castle and Island) - respawn 12 hours
Erohim (appears at random coordinates in Noria)(also appears in the Castle and Island) - respawn 12 hours
Balrog (appears at 45,152 coordinates in Lost Tower 7) - respawn 12 hours
Ice Queen (spawns at 14238 coordinates in Devias 4) - respawn 12 hours
Hydra (appears at 24,167 coordinates in Atlants) - respawn 12 hours
Zaikan (appears at 11,241 coordinates in Tarkan 2) - respawn 12 hours
Drake (spawns at random coordinates in Devias) - respawn 3 hours
Doll Master (spawns at random coordinates in Lost Tower) - respawn 4 hours
Ancient Piranha (spawns at random coordinates in Atlants) - respawn 6 hours
Gargoyle (spawns at random coordinates in Tarkan) - respawn 6 hours
Arib (spawns at random coordinates in Aida) - respawn 6 hours
Or in the menu
Next, sort and look for the boss you need