v0.5 is now available.
This version contains major changes.

Up until v0.4, the enemies were relatively slow and could not be taken down without firing a number of shots.
Isn't that a little too easy for many people?
From v0.5, enemies are quicker and have less health in return.
This makes for a more tense gameplay experience, as you have to take down an enemy with a limited number of shots before they approach you.

However, the gameplay feel is so different that I made a temporary beta named "v0.4" for those who want to enjoy the previous gameplay.
From the "Beta" tab of the game's properties, you can enable v0.4 by entering the password "versionzerofour".
If you are in the middle of the game, you can enable this version and proceed as is.
Of course, the current save data is still valid in v0.5.

As a developer, I hope you'll start v0.5 all over again and enjoy a more thrilling experience.
I hope you enjoy it.