Boss Shifter

Press W to accelerate, A and D turn. Space shoots. Different weapons do different things, and your weapon changes after each bossfight.

There is no deceleration and many projectiles will knock you around, spiraling you out of control. 

I did not make any assets, links below:

Background Sprites https://ansimuz.itch.io/space-background

Projectiles and Ships https://free-game-assets.itch.io/free-enemy-spaceship-2d-sprites-pixel-art

Music https://timbeek.itch.io/free-retro-boss-music