I liked the old CRT style noobs and dials to adjust the display. Very cool VFX.
There are some downsides to this. I was starting to look at the minimap as primary navigation indicator. Of course that failed in room 2 when I got attacked by enemies. So for combat you end up adjusting dials (while been blasted) and otherwise just looking at the minimap.
Combat is a bit of a mixed bag. There seems to be no collision/blocking between enemies and the player so it looks like multiple entities can be on the same tile at the same time. That could work but if the enemie is on the same tile as the player the billboard renderer goes crazy drawing the sprite with an very odd angle.
All in all, I liked the CRT VFX but the combat needs some work.