Yeah, these guys https://en.wikipedia.org/wiki/Tuned_mass_damper https://en.wikipedia.org/wiki/Tuned_mass_damper I remember someone wanted to involve one in th

Yeah, these guys https://en.wikipedia.org/wiki/Tuned_mass_damper https://en.wikipedia.org/wiki/Tuned_mass_damper I remember someone wanted to involve one in the plot of their video game. I wish I could remember the name, it looked cool. They had a couple animations done but I never saw the finished game.