- Nunu and Willump have a hidden passive where each drops a soul.
- Absolute Zero was named after at which matter stops moving completely (referencing both slows the ability has) and has the highest single Ability Power ratio in-game (250%)
- Nunu was named after Steve 'Guinsoo' Feak's dog (also a nickname for his wife)
- Classic Nunu [ |
- "Don't make the yeti angry. You won't like him when he's angry!" references from .
- "Speak softly... and ride a big yeti!" references ("Speak softly and carry a big stick")
- Nunu Bot [ |
- He and Draven share the quote "Man, I'm good" - /
- Sasquatch Nunu [ |
- Willump references and is wearing around his neck.
- Grungy Nunu [ |
- Nunu references while Willump references the (both from by )
- Nunu Bot [ |
- He was named after and references the eponymous series by 'angrygoran'.
- His voice differs from the series because, according to 'angrygoran' himself, another one had to be used due to copyright concerns.
- Demolisher Nunu [ |
- He references from and/or from by .
- TPA Nunu [ |
- He celebrates Taipei Assassins winning the Season Two World Championship.
- He represents MiSTakE.
- He shares this theme with TPA Dr. Mundo [ | , TPA Ezreal [ | , TPA Orianna [ | , and TPA Shen [ | .
- Zombie Nunu [ |
- He references , , and/or .
- All ice effects are replaced with a substance resembling vomit and/or radioactive liquid.
- Both Nunu and Willump groan to each other instead of speaking.
- He shares this theme with Zombie Brand [ | (can be seen in the background) and Zombie Ryze [ | .
- Nunu used to live in the Frostguard Citadel, where he met Willump. The boy never knew his parents and the Yeti was held in captivity, mistreated by the tribe's beastmaster.