A quick tutorial creating a simple enemy that will chase you when you step in range and will send you flying off the map if they touch you.
Checkpoint tutorial: https://www.youtube.com/watch?v=_dimFuUim1I&t=16s
Popup notification tutorial: https://www.youtube.com/watch?v=N87cIoXNOwQ&t=30s
Fall off map kill volume: https://www.youtube.com/watch?v=-iQBtX6_zik
If you wanna kill some time and like a challenge, here's a link to my latest (completely free) game: https://www.youtube.com/watch?v=Fi1GQMiFOEk