Health that is interactive with enemies and if zero you die.
Also Add Death Screen when dying(reset). Becomming unplayable if dead.
Add health bar over player and color scheme that indicates how low health they are. From Green to yellow to red.
Red indicates critical health.. Often indicates and advise the player to play safe. I nice to have featurer could be adding a sound that indicates the player is at critical health.
Yellow Indiciates medium health. Often indicates a less risky playstyle.
and Green indicates Healthy full enemies health.. Often indicates and agressive playstyle.
Health that is interactive with enemies and if zero you die.
EST 1:30-3H Depends on features. TOOK 2H