Thank you so much for the feedback and the love! I'm the character designer/artist :) the player character's name is Dev, he's a jersey devil wearing a jersey jacket (He's actually quite stretched in the game over screen).
As for the round 2 bug, I'm a bit intrigued as this is my first time hearing about it from everyone else's feedback, but I will definitely take this up to my programmer. We did intend to have a more diverse style of targets/enemies, but we unfortunately had not a lot of time to add most of the ones in our list (Honestly my fault, I wanted to make at least 2 designs per target-type and it definitely cut us short on target-types)! We kind of compromised with the lack of more target-types by just making the targets faster for more difficulty, but now it's clear that it is a bit over-tuned. Sorry!
One of the existing targets (The human in a purple dinosaur-suit) was actually meant to be a switch-up type target that you have to shoot twice! First seeing through his disguise/costume which reveals that he's a human, then another to score the points.
For the ammo mechanic, it was a last minute addition to our brainstorming so admittedly it is actually the least developed mechanic so I understand the clunkiness. Thanks for bringing that up to us! The other bugs we also have attention to currently and have been reported to us before but thanks for letting us know regardless :) !! I really appreciate the detailed feedback!