I also achieved 3 on 4.
Made some good progress on Xenoblade 3 but I've got anywhere between 25-100 hours to go.
Mario Galaxy 2
I played two of the green star mission then after that decided hell nah, that's going to be incredibly tedious. The green stars seem to be designed for kids in 2010 who had nothing else going on.
Overall I enjoyed the game. However since I've played the series out of order, the ideas appearing here for the first time didn't make much of an impact. Not really the fault of Galaxy 2 but the games that came after it.
The game has a surprisingly large amount of bosses. Lots of level variety, with both new and returning power ups. I don't think 3D Mario is 100% my cup of tea, but it was still a fun enough ride.
Luigi is way too slippery for me, so I eventually dropped him. Lastly I'd say that because of the green stars, the ending is kind of weird and anti-climactic.
Twilight Princess
I think this game is flawed.
There are some parts I enjoyed, sometimes the dungeons would set off a nice fuzzy feeling that you get when you're going through the motions, doing your internal dungeon solving algorithm. The dungeons are a lot more complex than Wind Waker, and the art style made them feel more like real spaces, rather than video game levels.
The reason I say the game is flawed is that it feels like you have a central gameplay strength (the dungeon puzzles), being held together by extremely flimsy connective tissue.
With the combat, while they do give you extra moves, it never really gets much more interesting than it is in the first dungeon. It's a means to an end.
The towns and overworld feel lacking in interesting NPCs, or side quests beyond collecting macguffins. Heart pieces diminish in their importance after you get enough of them and with the combat being so bland, there's not a huge need for them either.
Then the rest of the game is filled out with a shallow assortment of other gameplay types. Like horse combat, wolf combat, fishing, sumo, tears of light sections, herding goats, snowboarding, jousting, canoeing, chasing skull kid around the woods. They went for variety and succeeded, but these gameplay types aren't deep or even especially fun. It's there to pad the game out a bit before the next dungeon.
I agree with Neil's assessment on Connectivity. The game is dark, but not at all grounded. It's a goofball game and doesn't take itself seriously. I don't think there's anything wrong with that, but it feels like a mismatch with what the audience would be anticipating.
Resident Evil 4 Original
So fun from start to finish. The combat is satisfying and there is real growth as you learn when and where to use all the weapons. The inventory system is constantly forcing you to make choices and it feels incredible when you decide to spend your money after saving up.
The game is still very playable with tank controls and holds up remarkably well for a 2005 game.
The story is very silly and Leon is a walking meme generator, but intentional or not, that doesn't matter. This game lives on the strength of its zombies and the guns you use to kill them, which are exceptional.