I like <a href="https://familiars.io" rel="nofollow">https://familiars.io</a>, shows how you can do your own version with different art and characters that's still fun.
Ouch, giving me only a Blastoise with Tackle and three water type moves and an opponent with a Venusaur is just mean. I know those are probably the default moves for a Blastoise at that level but there are plenty of other pokemon to put in the sample battle instead...
I notice that some games on itch.io are able to capture the down arrow key and stop it from scrolling the page (ex.: <a href="https://elastiskalinjen.itch.io/oh-high" rel="nofollow">https://elastiskalinjen.itch.io/oh-high</a>).