Super Mario Galaxy co-op

Couch co-op for 2 players · full campaign in co-op

2007 · Nintendo Entertainment Analysis & Development · 94/100 · ~14 hours

Split-screen

shared screen instead

Local

2 players

Online

Not documented

Cross-play

Not confirmed

Co-op at a glance

Split-screen: No — shared screen
Local co-op: 2 players
Online co-op: Not documented
Full campaign in co-op: Yes
Cross-play: Not documented
Drop-in / drop-out: Yes
Platforms: Wii, Wii U
Developer: Nintendo Entertainment Analysis & Development
Series: Mario Bros.

Co-op details come from the IGDB games database. Missing entries mean “not documented”, not necessarily “not available”. Data checked: 2026-09-30

What it is

A 3D platformer and first Wii entry in the Super Mario franchise, Super Mario Galaxy sees Mario jump across planets and galaxies with varying items, enemies, geographies and gravity mechanics in order to reach his enemy Bowser, who has attacked the Mushroom Kingdom and hijacked Princess Peach's castle with her inside.

Every hundred years, a huge comet flies by in the skies above the Mushroom Kingdom. One year, that comet filled the entire sky, and from it fell a stream of shooting stars. The Toads scooped up the Star Bits and brought them to the castle, where they were reborn as a great Power Star. It was a happy time in the Mushroom Kingdom. Then one night Mario received a letter... “Dear Mario, I’ll be waiting for you at the castle on the night of the Star Festival. There’s something I’d like to give you. from Peach” With invitation in hand, Mario headed off to the castle just as the Star Festival was getting into full swing. Surrounded by Toads gleefully trying to catch falling Star Bits, Mario was looking forward to the night’s festivities. But then, something happened...

Frequently asked

Does Super Mario Galaxy have split screen?

No split screen is documented. 2 players can still play locally — on one shared picture.

How many players can play Super Mario Galaxy locally and online?

Locally: 2 players. Online: not documented.

Does Super Mario Galaxy support cross-play?

No cross-play is confirmed for Super Mario Galaxy. Our cross-play data comes from a hand-maintained list, because the games database has no field for it.