The Extra Life Quarter was an artifact that was a 1981 quarter that Parzival received after playing a perfect game of Pac-Man in Happytime Pizza on Archaide. It is currently the only known artifact in the Oasis that grants the user in an extra life.
Once received, it is impossible to move or take out of your inventory. Upon dying, instead of receiving the "GAME OVER" screen, you will receive a message that says "CONGRATULATIONS! YOU HAVE AN EXTRA LIFE!", and respawn at your death location without any items except for the quarter. You will spawn with all of your previous levels and ability scores while wearing the default black T-shirt and jeans. After the Extra Life Quarter has been used, it turns into a normal quarter.