A good start, but the text is hard to read and while the dual tone looked nice, it was difficult to figure out what was walkable vs. not sometimes. The camera movement also felt like it worked against ease of movement. And of course, it's vampire survival. The delivery aspect is cute but I'm not sure it's enough to distinguish it from the hoard of VS clones.

Minigames are just blind guessing games with the exception of the logic puzzle which is also a memorization task for some reason, and the main game doesn't seem to be available yet. You can only open packs and see some low quality gijinka.

The difficulty of the game isn't the problem, but the lack of design and tutorialization / onboarding is. I don't mean telling the player how to play, but the gameplay itself should introduce new mechanics slowly to teach the player through gameplay. If you love Celeste, I'd suggest you look into some of the talks the devs have done on how they made their game feel challenging but also fun and fair.

Two suggestions you could make without looking into that;
1. get the player back into the level faster. You shouldn't be toggling through beginning of level speech every time you die.
2. Make your controls feel snappier. The floating jump makes gameplay longer and more difficult without feeling good.

And as a reminder- you will always be the best player of your game. If you think it's just hard enough, it's probably too difficult.
And if you find yourself thinking, 'the people who are playing this game aren't my intended audience', you're ignoring valuable free playtesting feedback.