This Black and white old style looking animation is the latest in a study called Rubber Hose Animation. Similar to the old styles like Mickey Mouse and many others, when he first started.
It’s a lot of frames each individually drawn and placed.
It is a lot of work and sometimes segments are repeated in reverse to create more action as they were in the early cartoons.
Similarly this can also be seen in the Sand People attacking Luke Skywalker segment in Star Wars.
This is a video that was part study and art project in school.
It features tradition animation techniques and each frame is meticulously draw, however, some parts are copied but other parts are draw in to create the motion effects.
One other part you may notice is the eye blink, it’s a style called the Frog Blink. It adds a bit of flavor to the video short.
The frames in the animated part are drawn individually while the background is a set piece that doesn’t move and is constant.