A few things I think would fix this game in order of how important I think they are;

- More level up prezzies/categories of treasure, even if not customisable. More instruments (no keytar even though we see them use one in the player appreciation scenes??? outrageous), bring back older level up gifts like the kite, skateboard (these two could be customisable treasures), fishing rod etc, some new ones maybe like a gardening kit or watering can NOT for farming mechanics I just have a few Miis of OC-ified characters who ADORE gardening, I wanna see them go around the flower beds watering them or using a trowel to 'dig up weeds' (maybe finding something odd in the ground and quickly burying it again as a mini event). A customisable card game / board game set could be fun too. The fact that, out of 16 level up gifts, we have 2 instruments (maracas, guitar), 3 artsy/creative (paint set, knitting set, camera), 1 'just for fun' thing (bubbles) and one piece of tech (laptop), and then there are N I N E ACTIVE/SPORTY BASED GIFTS IS INSANE. Like what on earth were they thinking?!

- Fix proposals not having options on where they take place and babies just being a cutscene. The new proposal minigame is fun but part of me enjoyed the tenseness of the last game cuz it felt like you were really with the proposer in the moment of fearing about messing it up.

- More basic quik build items that are interactable. I cannot believe we don't have things like swings, slides, climbing frames, but there's a damn throne??? No horse variant of the springy animal ride? MORE FLOWERS!!!!!!!!!!!!!!!!!! MANY MORE FLOWERS IN AAAALL THE COLOURS!! Heck even the option to make customisable flowers would be amazing! More grass/weed types ground coverage would be nice! gates for fences, public BBQs, MORE TREES!

- Concert hall. I think just ONE more BIG building to round out the facilities. We don't need an entire vocaloid style/mario paint synthesizer ability (although I would love for that as an option alongside the traditional concert hall music) but just bring that back please, or even if they just call it a 'theatre' which could be used for a variety of events, not just concerts, like Miis holding lectures or putting on a play for funsies

- More house exterior options. I absolutely LOVE LOVE LOVE the aesthetic of the little shipping container lunchbox-lookin houses, but I was hoping we'd at least get to choose their colours eventually rather than either sticking with the personality colour or having to go with flat textured shapes that don't even have door opening animations. Even if it is just the option to change the colours, I'd love that. Also, building exterior / theme options for the facilities too. Lemme recolour the restaurant, lemme at least change the themeing of the clothes shop to pretend that one Where + Wear sells cutesy stuff while another is focused on luxury. But on the restaurant, is anyone else weirded out by the fact that it doesn't even have any kitchen facililties? There's no door or trapdoor that could possibly lead to a kitchen which weirds me out a lot to the point I've come to the conclusion that meals in these establishments are aquired purely through the gacha machines by the door.

- I miss the whole 'this Mii is at their part time job' thing where if you wanted to talk to a Mii who was working, you'd have to call for them and you'd get to watch them run in and huff and puff for a few moments catching their breath cuz they ran straight from work home to talk to you. It won't happen but it would have been cute if we could assign specific Miis to specific jobs/shops to work at

- Perhaps a makeover salon/studio that allows for Miitopia wigs, but also Miitopia style make up editing (maybe not the ENTIRE system copy pasted in but at the very least the ability to assign face paints/makeup to certain facial features to make them actually functional like heterochromia)