Hitman: Blood Money Glitches and Easter Eggs (PS2)

In Hitman: Blood Money for the PS2, Agent 47 finds himself in the midst of a war between two rival contract agencies. When assassins from his contract agency, the ICA, are systematically eliminated in a series of hits, it seems a larger, more powerful agency has entered the fray. Suddenly, Agent 47 loses contact with the ICA. Sensing that he may be the next target, he travels to America where he attempts to carry on with business as usual.

The story follows the life of professional Hitman agent 47, as narrated in cutscenes by a former director of the FBI to a journalist who is interviewing him at his home. The wheelchair-bound ex-director recounts how his agency tracked 47 over a two-year period. The tone of the Blood Money, in complete contrast with the dark and depressing mood of the previous game, is operatic and often veers into the larger-than-life, recalling elements of the 'world-traveler' grandeur of Hitman 2: Silent Assassin. (Wikipedia)

Easter Eggs

Rat Room
On the opera house mission, in the basement at the back part of the stage, there is a room that leads to staircases to bathrooms on the first floor. After heading down the stairs there is a room you enter, kill the three rats on the ground and check the bench at the end of the room. There is a keycard for the rat club. Head to the second level where you collect the lightroom keycard. There is a door that cannot be opened. Use the rat club keycard and in there, there are rats boxing and gambling.

Glitches

Auto climb past windows
When next to a window you can't seem to really get past, bring up your map and then go back in-game and 47 should climb through the window.

Note: Sometimes you have to be touching the window.

Unlimited Saves
When you're in the middle of a mission and in the process of saving, repeatedly press the start button, and after it's done saving, the number of saves won't lower.

Brilliant cutscenes in this Hitman installment... Here's one of them: