There are four.

[nocturnecalypso]

Luigi is the most confusing and perplexing of all the video game characters. He is often very silent, very courageous, extremely scared, extremely feminine, or extremely gay. This has puzzled me, so I'm going to do a sort of analysis on Luigi, the Mario Brother forever in his brother's shadow.

Comments

[hcuz]

Where does the Luigi(s) in SMB, SMB3, SMW, and Double Dash fit in?

[nocturnecalypso]

The SMB, SMB3 and SMW Luigis are actually Mario. I'm not going to consider an edited sprite to really be someone else. ;P

The Double Dash Luigi? He's a mixture of the Badass Luigi and the Hermit. He doesn't get classified.

[englishpigdog]

Luigi = The best character in SMB2.

That doesn't mean his obese futurist brother doesn't use him for tight sweaty incestual buttsex, however.