All you need to do is : First click on the green flag .Then click on the space key.
First I made a backdrop then I got two sprites and I snapped these blocks together : Sprites! Cat1 flying: when green flag clicked forever glide 1 secs to x:238 y:132 glide 1 secs to x:-171 y:183! Cat1:when space key pressed say Wow! for 2 secs say I didn't know that cats could fly! And there you have your own flying cat animation! The End!