Did you ever ask yourself, what would happen, if you would move a rigidbody in Update? If yes, look no further, because I published a small WebGL application where you're able to play around with different rigidbody movement types in 2D. The Smooth Movement Test Application lets you add different lanes, where you can set and compare following settings: Update vs FixedUpdate Kinematic vs Dynamic rigidbody Rigidbody interpolation Physic Rate V-Sync And more! Here's a short overview: You can run the application here. More information can be found in the blog entry. The source code is also available on github. Hope it's useful to someone!