SkyEMU absolutely destroyed my ears with sounds. mGBA and web versions seemed a bit better, but still - the audio is quite bad.
It works, and big props for the hustle of making a GB game - but it feels a bit too simplistic for my liking. There are barely any sprites, combat encounters started to be more frequent - and they didn't provide much of a challenge. At some point it just became repetitive, unfortunately.
Also - it's kinda hard to remember what each character is - especially since their skills are unnamed. I definitely don't remember who was who, but I think the second acting character is a mage and the first one is a warrior or something?
I did reach the tower levels (after floor 5 I believe) and stopped. The core gameplay is there, but it needs quite a lot more - right now it just isn't very engaging, unfortunately.