This is a nice game with a creative upgrade system! One thing to note though is when I pause the game, sometimes the enemies make it hard to tell which are my upgrade dice
True. I was thinking of this menu as an overlay and not another menu so I think a solid background (while a solution) would have a different feel, but I probably could have put the dice in a tray with a background to separate it. Or maybe blur out the gameplay so there's higher contrast.