Vertical shoot em up. One of the best shooters that I've played that has such a basic style to its gameplay. All you have is a button to shoot, no bombs, specials, speed changes, or advanced scoring mechanics. You can pick up powerups to turn your main shot into a spread shot or more powerful straight shot and can pick up secondary weapons including a wider secondary spread shot, homing laser, or the most interesting being two smaller ships that chase after enemies and obstacles. Great music, nice opening and ending cutscenes, varied level design.

Screenshots: https://twitter.com/Legolas_Katarn/status/1599708854824370176