Hello, Z-gyubaaners!
I've made some adjustments and updated to Ver.1.0.2, so please give it a try!
Changes
Improvements to SELECT STAGE
Just press up or down to select a different area. No need to select the triangle and press anymore!
Endless Mode rooms can now be played individually. You can practice the same room consecutively. High scores will not be recorded even if updated.
To record panel destruction rates for each Endless Mode room, you must exceed 75% before entering the next room.
Illustrations for ENDLESS mode are now available for viewing. Several illustrations were reused from ARCADE mode, and it is planned to replace these with new illustrations in the future.
Aim for 100% completion even in ENDLESS mode!
(Panel destruction rates within rooms in ENDLESS mode have been saved since Ver.1.0.0. This does not affect achievement unlocking.) 
High Score Leaderboard Support for ENDLESS Mode and CARAVAN Mode
After completing either mode, if you've updated your high score, you can upload it from the results screen. You can check the rankings below.
Steam コミュニティ :: Z-GYUBAAN!（ズ・ギュバーーン！） :: ENDLESS HI-SCORE
Steam コミュニティ :: Z-GYUBAAN!（ズ・ギュバーーン！） :: CARAVAN HI-SCORE
Additional Elements to OPTIONS
Full-screen mode toggle via the F11 key is now enabled. The default setting is ON.
Adjusting the darkness of background illustrations is now possible (four levels including previous settings as normal).
The OPTIONS screen has become cluttered with elements, reducing visibility. I plan to reorganize the screen when adding new items in the future, but for now, it'll stay as is...!
Adjustments to Player-Related Elements
Laser shot's attack detection range, which was previously the same as normal shots, has been slightly expanded.
Added an effect when the barrier disappears. Also adjusted the sound effect played at that time and added a voice line when the barrier is completely gone.
The player now flashes during invincibility times upon returning to the stage or immediately after warping.
When the Wipeout gauge recovers, a dedicated sound effect will now play.
Adjustments to minimize obtaining unwanted items
When defeating five or more enemies with a wipeout causes an item to appear, it now spawns from the enemy that was farthest away among those defeated.
When a player has the highest-level shot of a particular type equipped, defeating five or more enemies with a wipeout will no longer cause that type of shot item to spawn.
This slightly increases the spawn rate of other items.
When items drop from defeated enemies, they will now appear at a different location if the player is overlapping the enemy.
Adjustments to Items
The hitbox for the invincibility item(
) has been slightly enlarged to make it easier to obtain.A dedicated sound effect now plays when an invincibility item appears.
Other adjustments
When starting ARCADE mode from the beginning, you can now select the difficulty level. You can still change the difficulty level at any time from the OPTIONS menu.
The Continue screen now displays tips.
Stage 2-4 boss "Soyer Soyer" can now be blocked once with a barrier against its charged laser attack.
It seems Mizuki-chan's guts have been toughened up lately.
Bug fix
Fixed an issue where the panel destruction rate might not reach 100% in Stage 4-3.
The English text displayed on the TIPS screen contained some mistakes, so I replaced and corrected it. I also made some adjustments to line breaks and other formatting.
Please continue to support Z-GYUBAAN! as I plan further updates!
Yogurt Neko