Very nice quality, looking forward to the full release! I have a few requests.
Since there is no time to check the top of the screen while playing, it would be easier to see if the life gauge for boss battles is also on the bottom of the screen.
Bosses and mid-bosses should flash red when their durability is low, so it is easy to know when you are close to defeating them.
The bomb chip vacuum should start earlier when you stop shooting.
It might be nice to drop bomb chips a little at a time when you are dealing damage during mid-boss or boss fights.
If you miss when a bomb is fully charged, it might be better to trigger the auto-bomb.
Are the EXTEND scores still being adjusted? If it's a total of 7 stages, could it be enough to EXTEND around stages 2,4,6?