Heartwarming / Mega Man 5

  • Proto Man. When you reach the end of Proto Man's castle, you'll be weakened to your last hit-point, Proto Man then shows up, saves Mega Man, reveals the other Proto Man is simply Dark Man 4, and he gives Mega Man an E-Tank.
http://tvtropes.org/pmwiki/pmwiki.php/Heartwarming/MegaMan5