Stutter stepping, gliding, "flying": pushing forward over and over to reset velocity while falling.
Wall climbing: jumping against a wall over and over to climb it. Usually used to enter unintended areas.
These are bugs that really hinder many world creators from making proper games, platforming puzzles, and so on, These are also pretty hard on controllers as well.
If a world creator wants you to get somewhere, they can make a teleport, or, include stairs. The kinds of worlds we can make are being limited by these bugs that should have been removed 2 years ago.
Also, I heard owlboy might add jumping to the pug if these are fixed ;)