Wow, short and sweet! Good hotline miami vibes (but more health which is nice)
Your engine feels tight, it blows my mind that people build their own from scratch!
It made me want more levels, so I challenged myself to defeat all the enemies instead of just grabbing the package, which made it much more strategic with ammo!
Two recommendations, keep enemies from shooting before I come around the corner, and allow a bit of camera pan towards the cursor to see further.
Great work, love to see this kind of entry!