Level 51 - Alien Hominid - A 2D side-scrolling shooter developed by The Behemoth that made the transition to consoles after starting its life as a web-based action game.
Level 52 - Spoony Bard - A rather odd insult from Final Fantasy IV. Spoony is a real word, meaning foolishly sentimental, but I can't imagine what thesaurus the translators used to come up with it when they were localizing FF4.
Level 53 - Zenny - Currency used to buy weapons and upgrades in Mega Man Legends 1 and 2 for the Playstation
Level 54 - Simon Says Bleed - From Demolition Man for the 3D0.
Level 55 - Rise from your Grave - The famous line said by the Greek God, Zeus, in the Sega Genesis, Altered Beast, which allows you to "rise from your grave" to start the game.
Level 56 - Mr.X - The main villain in Mega Man 6.
Level 57 - Karateka. Karateka is a 1984 computer game by Jordan Mechner, the creator of Prince of Persia.
Level 58 - Death=Adder -A dictator that serves as the antagonist in the arcade and console game Golden Axe. The correct reference to him is "Death Adder".
Level 59-Virtual Hustler- A dealer of goods that appear in various MMO games, such as Ultima Online.
Level 60- Master Chief - The main character in the Halo series for the Xbox and PC, who helps the Marine Corps fight against a race of aliens called the Covenant.
Level 61 - Mr. Big - A boss character from the SNK fighting games for the Neo Geo (Art of Fighting).
Level 62-Stylish Crazy Action - From Devil May Cry for the PS2
Level 63 - Big Smoke - Member of the Grove Street gang in Grand Theft Auto: San Andreas.
Level 64- Easter Egg- a hidden "surprise" of sorts put intentionally into a game, movie or program.
Level 70- The Boss- a character from the MGS3 series, The Boss (aka The Joy) is the founder and leader of the Cobra unit.