rancid gyro
This one is going to be a bit shorter as it's something that is lower priority, but the animation in HN2 is a bit jerky. The characters jerk around and move in a very stilted manner, as their individual animations have no real transitions between one another. It leads to a very unnatural look to the Neighbor's movement, and sort of breaks the immersion of these characters feeling like real people. That, and some of the animations themselves could be improved to inject more personality into each of the neighbors, though if I listed specific examples we would be here for a long time.
This suggestion also affects the player as well, as the player animations and the way the player feels as a whole are very janky and stilted. Smoothing out the player and the way it controls, as well as putting more personality into the player - Third person idles, more fidgeting with items, more reactions to the world - would also make everything feel much more fluid and alive.