I have 22 games 3 are second hand.... and I bought a like 10 arcade games...

I had a bunch of 360 games, but eventually couldn't play them all and gave some away and kept some.

Currently right now I have:

Halo 3
Call of Duty 2
Xbox Live Arcade Disc (came with the Xbox 360 Arcade)
Need for Speed: Most Wanted (Just bought today)

And I have one backwards compatible Xbox game that I bought today and its Doom 3: Limited Edition

Graw (Sold)
Chromehounds (Used - sold)
Pocketbike Racer (given away)
Fight Night 3 (used - given away)
Call of Duty 3 (given to me and then sold)
Test Drive Unlimited (Given to me and then sold)
Enchanted Arms (sold)
Just Cause (used - Still own it)
99 Nights (Still own it)
EDF 2017 (used - Still own it)
Crackdown (Still own it)
Forza Motorsports 2 (given away)
King Kong (used - Given away)
PGA 2007 (used - Given Away)
Oblivion (used - Still own it)
Gears of War (Still own it)
Bioshock (given away)
Guitar Hero II (Own 2 copies, my bro gave me his)
Guitar Hero III (Given to me and still own it)
Dead Rising (used - Still own it)
PGR 3 (Still own it)
Halo 3 (Sold)
Scene It! (Still own it)
Tetris Revolution (used - Still own it)
Assassins Creed (Still own it)
Mass Effect (Still own it)
Blue Dragon (used - Still own it)
Call of Duty 4 (Still own it)

My bro and I trade each other games, so Its a little confusing, but I own

7 - That I purchased new
8 - That I purchased used

28 - games that I've owned new or used at some point in time