Surprisingly good game. The dev contacted me and asked for some impressions, but I already had this on my radar before. Its pretty short with 2-3 hours for a first playthrough (so maybe keep an eye on it during the Steam sales if that is important to you), but the VERY challenging higher difficulties and challenges through achievements (beat X level by doing Y, etc) add a lot of replayability to it. Its also just... plain fun. Throughout those 2-3 hours, the game constantly introduces new enemy types and a wide range of weapons, so you always have something new to play around with/learn and the level design/enemy hordes keep you on your toes for most of the game.
Another thing worth mentioning is the polish, which I havent found often in such a game. In contrast du many other 2D platformers, it uses a VERY well done comic style, nunanced through snarky comments, a very moody soundtrack and extremely pretty animations. I had more than one moment, where I was marvelling at small graphical details, like the multiple subtle layers of background animations, very fluid character animations, extremely satisfying killing animations or small details like an in-style animated water shadow when you are walking in water or ... splashes from bullet cases hitting the water:
This game is drenched in love for making games, I am really surprised to see it seems to be one of the devs first efforts into game developing (at least according to the devs website). Apparently the dev is also working on a horde/MP mode to alleviate the playtime concerns. Really fun game, definitely going into my highly recommended or recommende list next month.