Here are all the references I found in the last level.
Board Games :
Kentucky = Settlers of Catan
Monotony = Monopoly
Meeple from the game Carcasonne
Scrumble = Scrabble ?
Dice + Play Mat = D&D
Card Games
Charizard from Pokémon TCG
Pot of greed from Yugioh
Uno-reverse-card
Ace of Spades
A magic the gathering card I don't know the name of
Slash-card from Slay the Spire
Video Games
An NES (i see what you did here)
SMB3 (same as with the NES)
Goose Chase = Duck Hunt
Other Refrences I dont know :
- Airlock
- Bag of Holding
- Egg of the Eternal Void
- Rush Universe and the Martian Hospital