An "animated object" has many frames in one or both axes. We call horizontal frames: "frames" and vertical frames:"animations".
Take a look of this object working at this LOT.
The "echoos" are little monsters that live in the "Pink planet". They like to send people to the near past. Using a "ray-pistol" you can make them disapear.
You can see an echoo at this exercice, going to the Pink planet : http://www.dmu.com/olpctut/tut5e.html.
There are many "golden beans" at the "Pink planet" and the "Time-Space Inc." likes to send people to collect them, because they are very valuable.
You can see a golden bean at this exercice, going to the Pink planet : http://www.dmu.com/olpctut/tut5e.html.