First Frame Wallkick: Sometimes called a firsty. If you do a wallkick on the first frame after touching the wall, you will go much faster than normal. This can be good or bad depending on the situation.
Dust Frames: When you dive, you will lose speed for every frame that you are touching the ground without rolling. These are called dust frames because of the dust that comes from Mario while he slides. If you are perfectly optimized, there should be no dust at all. Note: This also applies to consecutive long jumps.
Daaaaaaaamn! Nintendo, why u so good?