Is there any video explaining more about the assignment and showing some examples? Thanks :)

There's unfortunately no introduction video for this assignment. But if you want feedback from students on your intake assignment, you can join our Open Day Discord server https://discord.gg/JTx8pdT

But generally, this intake assignment is pretty broad in what you can make. Just make a game that fits the requirements, whether it looks good, is programmed well, or has interesting mechanics. As long as you show you're motivated and passionate about game DEVELOPMENT, you'll be fine.