Hi, thanks for the detailed feedback. I didn't really ask anyone to play, so I didn't expect the feedback at all, but this is VERY MUCH WELCOME. Sorry for late reply.
Yes, I just played this build, it really doesn't have enemy shooting. Sorry about that. Kinda one of the reasons I didn't think of promoting it.
Unlimited ammo capacity, is something I have tackled on. I am working on an android port, and I have added survival mode that stops regen of the bullets. As for normal mode, one of the bosses really sucks up bullets quickly and it becomes a game of survival based on what you accumulated.
And I have also added some powerup/weapons that consume a lot more bullets, primarily a lazer attack.
Tho from the starting, I actually encouraged players to hoard bullets and keep moving, as when you have more than 500 bullets, you shoot way faster. But yes, without the powerup or the boss, the number won't really go down.
Yeah, the cover isn't exactly full granular. It's kinda a wild card here, it allows you to shoot through by luck or by aligning, but that's difficult.