It’s like the animation from all LucasArts games. If you haven’t played the others, you’re in for a humongous treat!

My favourites, in no particular order: monkey island 1 and 2, Indiana Jones, the dig, Sam & max, day of the tentacle.

There’s a project called ScummVM that allows you to play the games on Linux, windows and Mac.

Thimbleweed Park needs a mention. It was very cool. Ron Gilbert is a legend.

which indiana jones? i ask only in case you weren't aware there are two. they are both good, though the non-movie-tie-in is better.