The visuals of this game are rad! I love the desktop at the beginning, as much as the brutalist looks overall. Good old times, the '90. It really sparkler my nostalgia.
Ignoring the performance issues, I think that not much can be say against the gameplay. Although it is odd and annoying, even corrupted, that was the intended feeling and it fits perfectly with the voice of the hero, who sounds pretty wasted (and careless, to the extent of ripping his heart off).
I ignore if the right mouse button could have been used to pick the objects (of course, cooking the grenade should have been change to holding the left button). This might have improved the way you use your heart. Anyway, this game got me by its looks and that brief moment I was transported to the past!