DECAYED TUTORIAL & PLAYTHROUGH

About Decayed, from BoardGameGeek:

A hospital has experienced a parasitic zombie outbreak. Play as one of three survivors and attempt to defeat a zombie boss and escape the hospital. The player takes their turn by choosing between one of two exploration card and resolving the card. The card may be a zombie, scenario, or room. Once the card is resolved, the players turn ends. The player will roll 2d6 to take the bosses turn, the boss may miss, attack, or use their special ability. When a boss attacks you they have a chance to give you decay. When decay and health levels meet the player dies. The game ends when either the player defeats both stages of the boss or when the player dies. -description from publisher