This really is a game that makes you feel "unlucky", but I can't really fault it for that - it's true to the theme. With your damage being tied to the lightning strikes it's very easy to get bad luck with the opponent not being strikable during that attack cycle (mainly see the owl). And also, with no control over the lightning, it could leave you in a very tricky spot with the incoming enemy attack (see the crocodile/alligator) - I died to that a few times because the lightning came at the same time as I needed to strike.
Can't complain though. I always felt like if I did better at the parts I could control, I had enough health to survive one or two unlucky coincidences.
Very nice tiles, and you're such a little guy! Music and sound doing good work, too. I'm happy I managed to learn the patterns and beat all of the fights. Would love to see a game like this with an expansion on the mechanics/balance tweaks to the lightning timing.