So now you will be able to buy a slew of single-use items like 'Stop Time' and they will be available for use by pressing/clicking on the icon in the power-up section at the bottom. Count (lower right corner of icon) will decrease to zero and then the upgrade/powerup will disappear. Obviously any unused count persists across death (like salvage)Note also that the price doesn't go up exponentially like other power ups, consumables have a single price and you can buy as many of them as you can afford.