...you missed one very fundamental cliche of videogaming - the progressively increasing difficulty of the "enemies" throughout the game. It makes sense, of course, for the "big boss" to have his elite guard in and around his inner sanctum. However, many games I've played (which are admittedly few but tends to be RPGs) begin with a massive, violent event (e.g., the attack on the castle in Neverwinter Nights) which your character joins near the end of said event. Of course, the act is perpetrated by lowly imps that die with but a harsh look. It makes one wonder how there is any hope against the horde of the much tougher creatures awaiting you at levels 2 and beyond.

More importantly, it makes you wonder just how mediocre a bad guy you must be if you are assigned be the "boss" of the first level. That guy/girl/demon probably got that job as the result of nepotism ("Come on, I know my brother is slow, has no ranged attacks, and in fact has no combat ability to speak of, but he's kinda demonic looking and needs the work! Please let him sit around at the end of Act I until a random adventurer arrives? Please?!? He's cramping my style as the Lord of Darkness/Head of the Motor City Crime Syndicate/Undisputed, Spiky King of Mushrooms and Turtles").