Their exaggerated animation is a holdover from the Saturday when the game looked a little goofier and far more retro - by about midnight on Saturday I realised that creating sprite animations was going to take me too long, so I went for a cleaner, abstract approach. But yeah, that's why the swinging is a little janky.
For fun, here's a screenshot of what the game looked like by the end of Saturday... I changed direction a lot on the Sunday, huh?
