This is the most complete game I've played so far, and I have to say, it's nice to have a proper tutorial! All the elements are there as well. I like all the extras in the menus, all the settings and all the options like skipping cutsceens. And an OST with several themed songs (nice!)... It just makes the game have so much more depth to it, even if seemingly inconsequential. From the gameplay side of things, I think both difficulty modes were nicely balanced. It was quite relaxing on casual, reasonably more difficult on hardcore, it's what you'd expect and I like that aspect. The game design was well planned out and I though it was also executed well.
Still, some combat elements may need adjusted in future updates. Some moves don't behave as you might hope (like the teleportation not having a momentary shield or a tweened slow motion to cover the player against projectiles whose velocity they cannot determine), and the wave attack's dubious usefulness except in certain circumstances. Also regarding other aspects, while it's nice to see another game really try and tackle the theme element of the jam, perhaps this is too pronounced in things like the tutorial (and throughout the game) that it was hard to figure out what it meant—this confusion being resolved after properly starting the level and testing every button, it still felt like I left the tutorial knowing less than I though I did when I looked at the control map initially. The most concise reason for this feeling: too much text. Too much dialog intermixed with not enough gameplay made me forget the controls I was being told whilst trying to absorb to the story as it came along. In general, tutorials are far less important than gameplay so this is not any major detriment to the game, but since the tutorial has actually been implemented to this degree it is worth noting.
The story is hard to judge without more content, but the set up is there and it looks like it will be quite nice. Given how much effort the developer clearly continues to put into the game, I have no doubts it will also be substantial. "The setup is there" really is the best way to put a lot of things positive about the game, but on top of that 'the actual game' is there too. It's just really nice to see that planning... it comes through on every element. And the fact the team were able to pull through on delivery, even if there's still more they wanted to add (think of it as DLC, no?) , it's still quite fun even at this stage, so really nice job on it.