It's like Vampire Survivors, but with anime waifus and some enemies can sechs you. Progression is slow, and money is scarce (try to save the trapped NPC's scattered through the map), but once you'll start upgrading your abilities, you'll be THE bullet hell and you'll sechs the enemies instead of the other way around in no time. If you have general feedback or you encounter any bugs, the developer of the game usually responds over on their Discord, which is a nice thing. I like approachable devs in my anime waifu sechs games. Can't wait to play the upcoming DLC, good luck out there and let the grind for the achievements begin!