This has potential to be a really great game, but I feel like a few things could stand to be worked on.
The combat with enemies is probably my biggest gripe. It's fairly cumbersome to fight with them when they bounce around as much as they do upon being hit, with the green troll enemies often flying off platforms while I'm trying to dispatch them. The enemies tend to have more health than they really need as well, making them feel damage spongy. I'd suggest having enemies take a maximum of two hits, so that they still have some combo potential but don't take too long to deal with. The flying enemy in particular would probably benefit from only having one HP.
Some more minor complaints are that the health bar is quite difficult to read (maybe make the broken parts a different color?) and that it's difficult to tell when you've taken damage from something.
Otherwise, I love the sprites, animations, and movement mechanics. I'm excited to see this come out as a full game!