Slaying cyclops was harder than to run from them, unless they are siting and you can kind of aproach from the side and one-hit them. But drinking from that jar was a funny experience :)))
One thing to keep an eye out is perspective. Its generally best if you can see tile under you a bit, especially if game features items that you are able to pick up from the floor.
You did well on making splashes from when you do hit the enemy. That and sound gives basic feedback for player to know he did right hit, but collisions are a bit iffy - cyclops can go through you, from looks of it. Maybe its standart issue of player moving forward at the same time as enemy and they getting into the same cell.
Movement was good enough! I would always try and make turn same speed as walk though, so it wouldn't feel that you have to strafe instead of turning for fast movements. Its not an issue in your entry, but if you will be doing some nice labyrinths or alike - it will be good thing to keep in mind!
Nice touch with cyclops agro sounds. Was kind of funny to hear it all when they appear to block your escape and just roar, while rushing for you.
UI always has that anoying issue of being dependant on the resolution. I could barelly see text and icons on my screen, so it was a bit too tiny. Keep in mind, that you have to scale UI with screen resolution for your future projects.
All in all - its a good first attempt especially since you are brand new to game development! Keep on going :)