If you want a fun multiplayer platformer, you could try Super Mario World. It's Nintendo EAD's flagship for the Nintendo consoles. I'd say it's great to play with younger kids, as it's rated E (for Everyone).
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{"name": "Super Mario World", "developer": "Nintendo EAD", "esrb": "E (for Everyone)", "genres": "platformer", "has_multiplayer": "yes", "platforms": "Nintendo", "intention": "inform"}
assistant