To start off, I didn't encounter any significant or notable bugs/glitches during the ~2 hours that I played the game, which is very commendable.

Now as for the game itself. There are parts of this game that are really good, but at the same time there are noticeable flaws that hold the game back.

For the good: 

• Cutscenes are nicely animated.
• The inventory and item pickups are very well fleshed out. I was surprised to see my attack and abilities changing depending on the items I was carrying. It gives loot much more value than just a stat boost. 
• Boss fights are challenging and interesting. Even though I wasn't able to beat that Elf archer boss (don't remember her name), I feel like I could if I had kept playing. 
• Music is very nice. Did you make it yourself? It feels like there's a bit of Touhou influence there.

For the bad:

• Environments look very drab. I feel this is because areas heavily focus on using one color, like the castle area (walls, floor, etc) are all gray and the forest is mostly green (treetops, grass, etc). It's understandable if this is being done so that there is visual clarity when dodging. Even still it can get very boring.
• Too many particle effects. While sometimes it helps to give visual clarity when there's too many things on screen it just becomes a mess of shiny light. In some cases it can also cause performance issues. For example, there's that level where you fight that girl who makes five clones of herself (forgot her name) and when those flying slime enemies started attacking there were so many particles that it started to tank the performance of the game.

One last thing I'd like to mention that doesn't quite fit into good or bad is the focus mode (pressing shift to slow yourself down, like in Touhou). I didn't really find a use for it as most of the time the dodge was sufficient and bullets move too quickly for it to be useful. Maybe it's more useful in a later area.

With that out of the way, here are some notes I took while playing:

• Almost blinded by the level up text, maybe too flashy?
• Fire/Flamethrower attack (Fiera) can go through walls. Is this intentional?
• Some tutorial prompt should tell you, that you can switch between characters with Tab/Numkeys (Maybe I missed a textbox?)