I saw a project recently by @grkw2020 and it made me want to learn inverse kinematics. next i want to make it so the segments can't change directions like when you straighten it out. (i did it in 3D project outside of scratch but that was easier because the "elbows" can spin around toward a like magnet, but that doesn't work in 2D)
@grkw2020 's project: scratch.mit.edu/projects/1158680135 (This works the same as his except mine pulls towards the middle and towards the mouse instead of only the mouse, which is called Fabrik IK) where i learnt: https://www.youtube.com/watch?v=qlfh_rv6khY&list=LL&index=8&ab_channel=argonaut
