This is unironically a great example of automation vs manual work
I'll explain why this happens and the pros and cons of each cus it's really cool🧵

https://twitter.com/SBLAST91/status/1815383998916415791

In splatoon 1, hair physics are seemingly hand animated, it's not noticeable for small animation but in more extreme ones and during animation transitions it's a lot more clear. The wii u may have not been able to handle real hair jiggle or it just wasn't seen as an option