Very impressed so far! A few nitpicks were the animation is much better now, but it still feels a little flat when it comes to the poses. Sometimes the way to progress isn't obvious (like shooting diagonal in a hole) and can be a bit frustrating, since with all the bloom and effects, it can be a bit hard to notice. Items do disappear way too quickly, and maybe they should come to you like a magnet when close because a lot of the time, when an enemy is killed, the energy/missile is just out of reach by a pixel or so. The level design can feel very same-y with multiple rooms having the same layout. The first boss is a bit unforgiving and becomes a waiting game, as it has a bit too much health so you either die quickly and have to restart or stand in a corner waiting for it to pop up. Other than that great work!
Not exactly sure what you mean by "flat" in this regard but I will continue to improve the sprites over time, this demo update was the last time they will change this drastically though.
The diagonal hole is there to force the player to learn about diagonal aiming, I do agree that it might need more hints though so this is already on the list.
You can turn off the effects in the options menu if needed as well.
The magnet part about items is already on the list and it will be implemented so they move to the player if they are very close which in turn should solve the "just out of reach" issue.
I'll add "items disappear too fast" to the list though.
Not quite sure what you mean about the same-y part either since the rooms are all hand made and none should be the same really.
I guess you might refer to "this room is two views wide and this one is two views tall, this is a single view" or something like this.. otherwise I'm not sure.
The boss will be improved more over time, I do agree with the health part though so that is already on the list.
As for it being a "waiting game", sure it can happen but that might change once I reduce the health a bit and possibly do some pattern changes, so I won't put this on the list for now.
Thanks for the feedback. :)