LOVED IT!!
I'm not really into FPS's and I'm even less familiar with keyboard/mouse configurations, but I managed to finish it!!
Bless Nerissa and her floaty double jump~
I even were able to clear the first level with FuwaMoco when I got the hang of it.
The graphics are pretty good and the gameplay mechanics are GREAT!
I really loved the concept and the implementation is top notch :D
I loved how Doom expanded and de-expanded when collecting the kronies, using the whole Advent cast was great too!!
Also, saving the poor pebble was really inspiring me to do my best ^_^