Trying to get the little bots to the end reminds me of the classic game Lemmings. I did have some issues with the spring being inconsistent, and the UI is way too big if you don't make the game fullscreen, but otherwise it was a cute little game.
Thanks a lot ! You're right the spring is inconsistent because the collider I am using is to small I should make it a bit bigger so the bots get in it for sure !