I was playing the new mode "Bowser's Kaboom Squad" from Mario Party Jamboree and was wondering why the devs didn't include the cooperative minigames in the board mode in some form.
Because of that I think it would be a great addition to Pummel Party. Imagine there would be a single space that triggers a mid-turn minigame in which the players have to work cooperative to achieve a certain rang. If the players get a higher rang, they will all be rewarded with the same number of keys but if they get a lower rang, they all will lose a certain number of keys or health.
After the minigame the space will disappear to avoid a repetitive activation.
With that it could improve the balancing a bit because players who tend to lose the minigames can get keys. On the other hand, it could even create more strategy by sabotaging the team but getting the hate from other players.
But maybe it should be possible to turn this mode on/off. And it would need at least 5 minigames of this type for variation.
I think the mod community would also benefit from the introduction of this type of minigames. (other types of minigames like one vs. all would be also great)