This an animation I worked on which uses a combination of methods. Whereas Flash can have shortcuts with tweening etc., some of the animation here involved old fashioned frame by frame tweaks (see below).
The monkey in this animation is made up of three different movie clips joined together. The butterfly and bird are also separate movie clips. Some of this is still a bit rough, and will be polished up in time, but I wanted it to have an old style animation feel – like the early Mickey Mouse animations (see Steamboat Willie).