Very cool idea. Although initially it seemed somewhat basic, introducing the ability to chain multiple links together and having them break through some walls adds some nice complexity. With the time limit of the game jam, I feel like you had a fun idea and made a good game out of it. I wish it had a bit more levels as I feel like the mechanic has a lot of potential for creating complex puzzles with many moving parts but that's something you could add after the jam ends if you want to keep working on it.
Overall I really liked it, good job!