This game is cute. It's a roguelite side-scrolling bullet hell game. It accomplishes this by having you clear a series of enemies and then the "room" is complete and you can move up, down, left, or right to the next place on the randomly generated map. In the rooms you'll also find treasure chests with items that change your bullets, shops, healers--all that stuff in a roguelite--and you level up when you kill enemies, which gives you items that provide you passives and incentivizes you to go the rooms that have enemies. The bosses give you the hentai, though I think it's just nudity (so far I've only beaten one boss and she gets naked if you beat all 3 stages).

Funnily enough this game has a streamer mode that censors the CGs if you want to play this game on stream. I can recommend this game to fans of bullet hells; it's very cute and the music is good, plus getting the CGs is nice as you beat the boss.