PixelPhobicGames v2021.04.12 (Sega Dreamcast Game)

Blast by PixelPhobicGames was an entry to “Retro Jam” and is also available in the flavor Sega Dreamcast.

Just by looking at the screenshot you may recognize the similarity to Space Invaders. Be aware that you can only shoot one projectile a time, which raises the difficulty level.