Thanks LinkGamer for the compliments! The whole thing took weeks to come up with ideas and to be built, it's really nice that someone enjoyed it!
I used geometry (sin cos tan) to draw out the movement of the circles in the background and for the rockets in the later stage.
Along with even more geometry and scene.addBox({}), scene.addPen({}), I was finally able to create the rocket movement, along with the homing features.
Again, thanks for playing my scene! Hope you really enjoyed it.