Ninjago universe (visiting, occasional)
Ras's weapon: The Icon of the Source Dragon of Strength (hammer)
Locations:
- Monastery of Spinjitzu
- Ninjago City
- Sea of Sand
- Kryptarium Prison - in the Sea of Sand
- Ignacia - where Kai and Nya's parents (Ray (father) and Maya (mother)) are, the Four Weapons Blacksmith (location) is.
- Ed and Edna's 'n' Junkyard - where Jay's parents (Ed and Edna) are, Jay's parents are inventors too. Ed and Edna's 'n' Junkyard in the Sea of Sand.
- The Borg Tower - in Ninjago City, where P.I.X.A.L.'s creator/"father" is Cyrus Borg in his wheelchair is.
- Laughty's (bar) - in Ninjago City, Dareth is the owner of Laughty's.
Other Bad enemies: Bastards:
- The Overlord
- The Time Twins (Krux and Acronix)
- The Mechanic (Ninjago, half-human, half-robot because of his left arm)
- Aspherra (one of the Serpentine)
Ninja's species:
- Lloyd: Oni/Dragon/Human hybrid
- Kai, Nya, Jay, Wyldfyre, Arin, and Sora: Human
- Cole: Human (formerly ghost)
- Zane, P.I.X.A.L.: Nindroid
- Frak Slitterbottom: Constrictai/Venomari hybrid, orange scales, green spots
Ninjago universe (visiting, occasional)
Good Heroes (Ninja):
- Lloyd Garmadon - The Legendary Green Ninja, The Elemental Master of Life, Mentor of Arin, Sora, and Frak
- Arin Nived - Spinjitzu prodigy, creator of Object Spinjitzu
- Sora (born Ana from the City of Imperium) - The Elemental Master of Technology, Inventor, Arin's best friend
- Frak - The Elemental Master of Quake, Arin's childhood best friend
- Cole - The Elemental Master of Earth
- Kai - The Elemental Master of Fire, Nya's older brother, Mentor of Wyldfyre
- Jay Walker - The Elemental Master of Lightning, Inventor, Nya's boyfriend
- Nya - The Elemental Master of Water, Inventor, Kai's younger sister
- Zane - The Elemental Master of Ice, Nindroid, The Titanium Ninja
Ninja's colors:
- Lloyd: Green
- Arin: Orange/Dark Blue
- Sora: Pink/White/Dark Blue
- Frak: Green/Gray
- Cole: Black/Gray/Orange
- Kai: Red
- Wyldfyre: Dark Red
- Jay: Blue/Yellow
- Nya - Light Blue/Aqua Blue
- Zane - White/Neon Blue
Good Heroes:
- Master Wu - Founder of the original six Ninja (Kai, Nya, Jay, Lloyd, Cole, and Zane)
- P.I.X.A.L. - Samurai X, Zane's girlfriend, Nindroid
Ninja's weapons:
- Lloyd: Golden Dao sword
- Arin: Grapple hook
- Cole: Golden hammer
- Kai: Golden katana
- Jay: Golden kusarigama
- Nya: Golden spear
- Zane: Golden shurikens
Good Heroes' weapons:
- Master Wu: Bo staff
- P.I.X.A.L.: Twin katanas
Ninja's techniques:
- Spinjitzu
- Rising Dragon (Kai, Nya, Lloyd, and Zane)
Spinjitzu colors:
- Lloyd: Green
- Arin: Yellow
- Sora: Pink
- Cole: Brown/Orange/Black
- Kai: Red/Yellow/Orange
- Jay: Blue/Yellow
- Nya: Aqua Blue
- Zane: White/Neon Blue
- Master Wu: Golden
- Lord Garmadon: Purple/Black
Bad enemies/Bastards:
- Lord Garmadon: The Elemental Master of Destruction, Wu's brother
- Harumi - former jade princess, The Quiet One
- Pythor
- Lord Ras - tiger, trying to capturing the Source Dragons
Super Mario Bros universe (visiting, occasional)
Good Heroes:
- Mario
- Luigi
- Princess Peach
- Toadsworth
- Toads
- Toadette
- Princess Daisy
- Rosalina
- The Lumas
- Donkey Kong
- Diddy Kong
- Cranky Kong
- The Kong family
Bad Enemies/Bastards:
- Bowser
- Kamek
- Bowser's army
- Goombas
- Dry Bones
- Koopa Troops
- The Koopalings (Wendy, Roy, Morton, Iggy, Larry, Lemmy, and Ludwig)
- Hammer Bros
- Bowser Jr.
- King Boo
- The Boos
Sonic the Hedgehog universe (currently)
Good Heroes:
- Sonic
- Tails
- Knuckles
- Shadow
- Amy
Annoyed Heroes/Enemies:
- Jet
- Big
- Storm
Bad Enemies/Bastards:
- Dr. Eggman
- Dr. Eggman's robots (The Badniks)
- The Badniks
- Metal Sonic