I want to make the polar bear look like it is eating santa! But the santa I found off the internet! How do I make it disappear when it is touching the polar bears mouth???


Simplest is to use a Hide block.


If you want it to hide only when it touches the mouth, instead of touching anywhere on Santa, you will have to do something. Santa's mouth can be a different color and you can use
<touching color [#f0f]?>

You can have a small sprite that stays fully ghosted, not hidden. This sprite must always goes to where Santa's mouth is. The requires math or trig or something. You can then use
<touching [Mouth Sprite v]?>