I really enjoyed this hack, though I did find it sort of awkward. Sylux himself just looks and moves strangely, and you will recognize many assets if you are a fan of Mega Man. I do find it admittedly charming though, I remember when romhacks appealed to me just because of that sort of referential element.
Other than the presentation, I found the game really fun. It is definitely apparent how many ways you can tackle this game even just from my single 100% run on hard mode. Upgrades feel especially well designed, there are plenty of moments that made me want to come back later. I found some parts a bit frustrating with damage output, but hard mode likely contributed to that with the lack of health comparatively. This is a hack that might be worth playing more than once to get more out of the open design.