Hi! I randomly found your game and decided to give it a try. Even though it's a work in progress, I had fun going through the content in the game so far!

I really like the spritework; the level tiles and objects are especially nice and varied enough to really give the feel of an enemy base. The controls are simple and work just like how I would want them to, and including Cirno's hitbox while strafing is extremely helpful for certain situations with a lot of enemy bullets. The only real issue I found is that some interactables feel like they don't stick out enough, particularly the ones with a single unanimated sprite. It's not a huge issue though, as the levels are short and simple enough that I was able to figure everything out before long.

I got stuck midway through Level 3, specifically at a green switch next to sewage that didn't seem to work even after I had picked up the green keycard. I assume that's where development has ended for now? After that, I used the debug menu to jump around to some other rooms, and the rooms that didn't have Cirno also didn't allow the menu to be reopened, so I had to relaunch the game a few times to check more rooms.