This was really fun!
The shotgun in particular feels great to use.
The SMG could stand to be a bit more accurate considering its low damage, but the only enemy that gave me trouble was the first mech because my instinct was to circle strafe it and it didn't work out.
I like the look of the levels, I kept getting keycards without realizing it but that's a me problem.
The enemies all look good too, they've got personality especially the CRT guys.
They aren't terribly engaging to fight once you get some good guns though, the mech is easy to kill from a distance, the melee bots have a hard time hitting you even when going for melee hits yourself and the shooters feel like a health tax more than anything since their attacks are hard to avoid but go down easily.
It's not that they're bad or anything, just that they feel like the chaff to a more challenging enemy that hasn't shown up yet.
I wish I had played this before, will check it out in future DDs for sure.