To avoid the abuse of a quick ransom out or knocking yourself out to recover from a loss and take revenge right away, we added 10 minutes of “Defeated/Unconscious” time after losing a fight. During this time, you will be able to walk, but not fight. However, if you are released from your opponenent you will be able to fight right away.
Free upgrades are at the entrance of the sign. Look at the Upgrade Sign on the wall.