The (relatively) new Kongpanion feature is really underused, but I think I think it has a lot of untapped potential the staff are failing to notice.
1. Kongpanions look nice when viewed as images, but there’s nothing more to them. Every recent JMTB02 game features Kongpanions, and every time they just look… lifeless. Their lack of movement makes them seem like cardboard cut-outs. I’d say making them flash objects with some basic pre-made animations would make them much better. Even a little idle animation thrown in would make them more interesting and lively.
2. I’m afraid I speak for myself only here, but give the shiny versions some more work. While some people collect the shiny versions just because they’re rarer, I don’t really find much incentive to collect most of them. I think adding some minor differences (other than the crown, of course) would make them much more appealing.
TL;DR: Make Kongpanions some animations, make shinies look more special.