At first, I didn’t understand why I should change a strong weapon to a random one. And then I saw that it restored health. Very cool idea. Good sounds of gunshots. Good idea with the low health sound.
The music seemed overly soothing.
Really good game!

This game is just lovely. It's really simple, but extremely engaging and fun. It slowly turns into a sort of bullet hell, and I love how fast paced it is. The exchange mechanic is probably one of my favorites so far.  

Not getting just get an upgrade, but a random weapon, makes it so you want to try and dodge as much as possible when you get a good weapon because you don't want to switch. Overall, I liked it a lot, great job!

Good design change gun when heal.

Fun one.

Very fun entry !
I really like the boss design on this one, and love the health bar idea. 
I also like that your game is forgiving enough and the powerups are really fun !

really fun game!

i like how the exchange mechanic is implemented, and i love the variety in all the guns!

shooting and damaging the boss also felt very satisfying with all the juice, but i wish there were some more sound effects, other than that the game feels great to play!

i like how the bosses ramp up with difficulty every stage, and the attack patterns were also really fun to dodge! seems like after stage 21 all the bosses just keep repeating the same attack? not sure if thats intended, but i stopped playing a few stages after that. overall though, this is a super fun little endless game!

A very good game

After each treatment, weapons will be randomly replaced, which is very interesting

I really like this design that shows health levels

It's a bit strange, the boss and bullets will also show up outside the black area

Highscore: 4  The gameplay felt good for squares, and the new guns kept gameplay fresh.

I honestly loved the use of the Exchange theme in this game. It was actually really fun to balance having a really good gun but then needing to heal and seeing what I might get, or throwing guns away to get better ones. Also showcasing health was done super well. Impressed with what you were able to achieve and the fun-ness of the game!

Very elegant design for showing health and player/enemy at the same time. Fun and addicting to play as well. More please.

Fun and simple. 5/5 Loved it!

Wow, like others have said, this is super elegant. I love the mechanic of being forced to swap a weapon in exchange for a heal. I’d often get greedy to hold onto a good weapon and end up getting low on health forcing me to swap. I love the attack patterns of the bosses too. Shooting smaller squares that shoot smaller squares at my square, very neat.

The minimalist presentation works super well. The little particle bursts and the little ‘ping’ that happens when you’re at 1HP is great. This is a small thing, but I love how the background of the itch page is white too, so it looks like the game almost bleeds onto the edges of the canvas. Really nice work, I loved this game!

simple yet elegant game! had fun playing with the multitude of boss phases, really well done. there was an issue where if the boss died while moving to a position it will still count as damage to the player

Controls really well, smooth and super fun to play, simple yet very well made, great job on the music too.