How to make animated tiles
1) Click
on the first empty tile in the "Animating Tiles" window.
2) Push
CTRL and hold it.
3) Click
on the tiles (that you want in the animation) in the right order.
4) Stop
holding CTRL :).
There's your animation ! Use it in your levels.
© Rabbits Only 2000
tutorial written by the New spaz
And how to make destruct, buttstomp and collapsing scenery (added by Ninja Dodo)
Now you know how to make animated tiles, I'll tell you how to use them
as destruct, buttstomp or collapse scenery...
1) Make
a new animation with:
on frame 1: the tile which will be destroyed, stomped or collapsed.
on frame 2: an empty tile
and on frame 3: the tile you will see falling into pieces(usually the same as on frame 1).
(a frame is a tile in an animation tile)

2) Place
the animation tile somewhere in the level.
3) And
put a destruct, buttstomp, or collapse event (in the "Triggers &
Scenery" group) on it.
And that's about it. Of course, the events have special options, but
these are described in the Event list.