I'd envision something kind of like PvP Lix, where players/teams have their own Lix and their own skills, but instead of trying to compete to see who can save the most Lix, you work together to save as many as possible.
Unlike PvP modes though I'd expect more support for asymmetrical loadouts, so players might have different skill pools, possibly different Lix counts, etc.
I think supporting the partner mode isn't a bad idea, but as far as puzzle potential it's really QoL so your friends can contribute directly vs. streaming your gameplay and encouraging your friends to make suggestions.
Unlike PvP modes though I'd expect more support for asymmetrical loadouts, so players might have different skill pools, possibly different Lix counts, etc.
I think supporting the partner mode isn't a bad idea, but as far as puzzle potential it's really QoL so your friends can contribute directly vs. streaming your gameplay and encouraging your friends to make suggestions.
especially if I make levels with 100+ lemmings, or where you have to assign a load of floaters etc, but I get the impression many people often like to have 1 or 2 of each skill and don't like this sort of level? (To be honest, 1 of everything levels aren't my favourite type
)