While you can tackle the eight Robot Masters in any order, following this path ensures you always have the weapon that exploits the next boss's weakness:
: Playing as Proto Man increases the challenge, as he takes double damage from enemies, though he has a slide and a charge shot.
: In the Legacy Collection 2 version, you can unlock all DLC—including Endless Attack and Special Stages—by entering a code at the title screen: Up, Down, Left, Right, Left, Right, Down, Up, Up, Down . Mega Man 9 PSN
Which or Wily Castle boss are you currently stuck on? Mega Man 9 - Proto Man Mode Full Playthrough (Part 1)
: Automatically fills the weapon with the least ammo when you pick up weapon energy. While you can tackle the eight Robot Masters
Collect throughout stages to trade for upgrades at the shop. Prioritize these essentials to mitigate the game's high difficulty:
: Fully refills your health. You can carry up to nine. Mega Man 9 - Proto Man Mode Full
This guide for on PlayStation Network (PSN)—also available via the Mega Man Legacy Collection 2 —covers the most efficient boss order, critical item shops, and tips for surviving this notoriously difficult 8-bit revival. Recommended Boss Order