Overall the game is fun.
There might be a couple of bugs, though', including the giant boss just attacking once then it stops and you can attack it as much as you want and he won't die (I just checked the page and saw you mentioned it). Turning near spikes sometimes damages you and one enemy seemed to kill me because I engaged it from behind, then I made no damage. Finally the grid door for the yellow key, it does not literally open, you can just walk inside (in fact I did not any time try before triggering the levers, so I have no idea if triggering the levers do something or don't).
But enough with what are probably bugs, the combat is not particularly engaging, but movement is pretty good and you built a proper dungeon with spikes, levers, keys, a fun code riddle and the two dimensions which fit the theme but are also fun to deal with, so I had good fun exploring it.