Great job on the game! It has a rather arcadey style, it's art was good and it's variety of weapons warranted a second or third playthrough to try them all, I quite like the quirkiness of the weapons though personally some of them felt less useful than others, even if their damage was quite good.
It was a strange feeling when you never felt like you needed to save money or anything and some cheap weapons were some of the best and so on. Like, the AMIR, Malware gun and flamethrower were my favourites, maybe their rate of fire? I did find the constant screen shake a little annoying when using them though. The Flamethrower's burn effect is a nice touch, though unfortuantely most of the time we're holding down the trigger and burning them with a barrage rather than setting them on fire and walking off.
The Zooka's slow rate of fire, inaccuracy and low area was a bit difficult to use effectively, especially when so many of the armadillos or rolly pollys show up.
It certainly had a Enter the Gungeon sort of style as well. The sprite work was really nice and the loading screen transition was a good polish. During the gameplay I was confused now and then why I would suddenly have that 70 paper for the expensive guns.
Great work on the game! There were no real problems with the gameplay or artstyle, it was very playable and good as a game. I love the boss' defeated sprite!