You can experiment, modify, and learn from the following samples. Remember that there is a tutorials page to learn the basics.
English Concept
Animations
Fictional scene:
The main character needs to collect all the treasures in a secret room.
However, there are evil guards in the room as well.
Luckily, there are magical stones that the main character can push/kick to kill the guards.
When all the treasures are collected, you win.
Fictional scene:
Once upon a time, there was a unicorn.
The unicorn has a good friend Koala.
Whenever the koala touches the unicorn,
the unicorn will have superpower.