Invincible Mario is a temporary state achieved by collecting a Starman (Invincibility Star). This power-up makes Mario completely immune to most enemy attacks and environmental hazards for a short duration. While invincible, Mario flashes rapidly and a distinct jingle plays. Any enemy Mario touches while invincible is instantly defeated.

Characteristics:
- Size: Retains current size (Small, Super, or Superball Mario).
- Abilities: Immune to most damage. Instantly defeats enemies upon contact.
- Defense: Complete invincibility for a limited time.
Strategy when Invincible Mario:
- Rush forward: The primary use of the Starman is to quickly clear crowded sections or bypass difficult platforming areas without fear of damage.
- Maximize enemy defeats: Run through as many enemies as possible to rack up points and clear the screen.
- Beware of pits: While invincible to enemies, Mario can still fall into pits and lose a life. Invincibility does not protect against bottomless pits.
- Time your collection: Try to collect the Starman just before a particularly challenging section with many enemies or hazards to get the most out of its effect.
The Starman is a rare but incredibly powerful power-up. Use it strategically to overcome obstacles that would otherwise be very difficult. Its temporary nature means you need to act quickly and decisively to make the most of its invincibility period.