Konami Man

Konami Man is the main hero from Konami Wai Wai World and was able to help rescue Simon Belmont and other Konami characters. He appears as a special bonus collectible in several Castlevania games. His female counterpart is Konami Lady.

Castlevania: Dawn of Sorrow
In the Cursed Clock Tower there is a room that has a platform surrounded with spikes, except for a small section near the top, accessible by flying in bat form (Bat Company's soul). By crouching down here for a while, Konami Man will appear and fly across the screen.

Castlevania: Portrait of Ruin
Obtained after beating Hard Mode (best ending) with a Level Cap of 1. Gives a permanent STR +50 boost (no need to actually use the item).

Castlevania: Order of Ecclesia
In Minera Prison Island there is a room containing a hidden Konami Man. The room is located on the right side of the map, just one room left of the Save Room. Konami Man is hidden in the right ledge, near the entrance to the Save Room.

Castlevania: Harmony of Despair
In Come Sweet Hour of Death (Chapter 6), right before battling Dracula, at the beginning of the stairs jump to the ledge above the door. Now climb up until you can't go higher. Once at the highest point press ↑ just once and Konami Man will appear flying across the screen.