That was honestly great! My one nitpick was that the controls really weren't obvious - I tried to open the instructions menu by hitting enter, only to have that pull up the pause menu.
I did really like the mechanics though - took me my first playthrough to understand enough about the game to be able to work out what the dice combinations at the bottom of the help meant, but the second time round was a blast. Stacking 3 green dice and a touch of luck meant I got four instakills and won, which felt great.