Doomish - About 70% Done

So I've got almost all the game mechanics done. The first level is finished, but the end switch doesn't work yet.

Finished most of the level types of objects, got doors, secret doors, switch doors, moving platforms... so most of the stuff left are the UI elements, the title screen, the pause menu, and the map.

I also have to make two more levels, all the sound effects, and at least one music track, and then I'll be done.

Here's a short gameplay video. The music is from the 21DaysOfVGM challenge I did back in April. It's not coming from inside the game yet, I just thought the video is too boring without sound.