I gave it a try and thought...
The Good :
- Retro feels in graphics. Music is okay too.
- The inventory UI is accessible enough and at least it shows the descriptions for items and upgrades.
- There are no shortage of ammo or health as enemies respawn on using spawn points, and they refill your health.
The problems
- LACK OF OPTION MENU and unable to tweak important settings, such as SENSITIVITY, KEYBINDS, TOGGLE RUN or BRIGHTNESS. (Bonus retro point if you're able to put "Centered Weapon" option!)
- It would be nice if enemies had sound alerts on spot, like in Doom or Quake.
- Is implementing maps, or "upgrades/key items stat tracker" possible? It's fairly important for OCD players like me.
- While it shows the projectile path, Laser doesn't shoot where the crosshair points to.
Hoping the game to be improved and eventually finished!