This game is a scratch project that was converted to HTML and other formats using turbowarp. The embedded game does not work on ChromeOS, but the downloadable HTML works. 

This game is not yet finished, but here's the premise so far:

You wake up in a strange place with no memory of your past. Jump, shoot, and laser enemies on your way to find answers!

Yes, I know that you can glitch inside the platform insanely easily. No, I do not care(I do, I just don't know how to fix it). If you find another glitch, please report it in the comments.

Watch me make this game via the devlogs at: 

If you reach the boss area and then restart the game, the enemies will not have arms. You will need to restart the game again. No, it's not a glitch. It's a feature. Yeah. Definitely.

Use WASD or arrow keys to move, space to sprint, and click to shoot. Use "r" to reload. Press 1, 2, 3, 4, 5, and 6 to switch guns. Go left and right after killing all enemies to progress. Press "g" to open music volume settings

(Spoiler: at the end it will say "Insanetaco2000', but that's just my username on scratch)

Description from the scratch project:

I was sick and tired of all the platformer games on the featured page, all with the exact same character, and the same code, and all the descriptions stating "100% of code by me" when it's obvious they stole the project from someone. So, I actually made a platformer with almost 100% of all code by me