It took a second to understand what was going on, but pretty solid concept and fun game! The only (very minor) bug I encountered was the sound of the engine still playing after dying. A few things I would've like to have is a minimap (which can show you the playable area (maybe instead of a wall, have an outlining area where you are slowed down, warned and then destroyed) or some indicator of where the enemy players are relative to you, powerups (whether that be for speed, shields, or firepower), a health bar (so you don't just get one-shot), obstacles (like an asteroid belt to hide/navigate in), having firing go towards the mouse rather than the front (making aiming easier), have the laser beams fired travel with the velocity of the player in account, have ships that can take more and less hits worth an equivalent amount of points
another thing to make the game make more sense would be to create a reason why the enemies can't fire at you at times and why you can't fire at them at times (maybe the player's shields against lasers only work for a certain amount of time or there's a special emp that stops them from firing, idk)