This was really good! I loved the graphics and sound effects and the idea of protecting a save file. It was an interesting mechanic with the binary but it was a little hard to understand what direction it was reading. It was also weird that the 0's had attack but could not attack. I think you should have indicated/highlighted better how the binary powerup worked maybe outlining all the numbers in a matching row. You could also try to add pre movement visuals that show you if you will powerup anything after moving. Also, check out the little strategy game I submitted :)