Hey! less is more is represented by the fewer bullets you have the more damage you do, the less life you have, the more the tombstone that represents your life fills up, and also the fewer enemies left on the level, the more speed of the game inreases.
It was difficult to represent it, we tried to make it noticeable by using color and size changes in the UI, but even so, in this type of "frantic" games, the UI is almost never seen.
Thanks for playing! <3