I like the idea to roll stats, but it wasn't really clear for me if it does anything to my character in the game. I think that's because I didn't see anything yet before I start the game, and I roll stats before I start - it seems logical from dev perspective, but I (as a player) would prefer to try it before changes so I could understand (feel) the diffrence after rolling my stats.
For example, if I would have try shoot with fire-rate 1, then after rolling it to 3 i would enjoy to have "boost" for fire-rate. Or if I would have 3, and then it would roll to 1, I would actualy feel how hard it made my gameplay.
Besides that, I give it a good solid "good game". Music and art well matched (even for pre-existing sets), and the game feels like an actual game. Good one!