Every battle is a boss fight in the mysterious action-adventure game Bittersweet Birthday, which has a new demo and trailer along with a release date. They've confirmed it will launch on November 11th with Native Linux support and they've also put up a fresh demo.
More about it: "Bittersweet Birthday is a unique blend of brutal, finely tuned boss battles and heartfelt storytelling. Every encounter is a one-of-a-kind fight with multiple phases that demands mastery of movement, timing, and quick thinking, while exploration between battles reveals a world full of secrets, side quests, and colorful characters. Alongside its challenge-driven gameplay, the game stands out with its hand-drawn pixel art, memorable cast, mini-games and an atmosphere that seamlessly balances intensity and charm."
Check out the new trailer below:

Direct Link
Game Highlights (from Steam):
- A story of mystery driven by endearing characters.
- A lively village with friendly residents and interlocking quests ready to explore.
- Punishing combat where reading the enemy is the key to victory.
- A darts mini-game! Well, darts are being used, at least...
- A Gachapon machine with 48 collectibles up for grabs.
- Hand drawn pixel-art with beautifully designed backgrounds.
- Fully re-mappable input and support for PlayStation, Xbox, and PC controllers.