Currently... I'm only playing Donkey Kong, and League of Legends. With all the friendly gamers here, would be cool to put together a "Team DK" on League...but I realize it's not an arcade game. It is, however, a very strategic, teamwork oriented, real time strategy game...also free (most people end up buying a few things here and there along the way...I think i've put $20 into the game), and the largest E-Sport out there right now.
I'm "mikegmi2" on league if anyone decides to give it a try.
Arcade wise, I used to ride my bike up to arcades all the time and play mostly fighting games...Mortal Kombat 2, Killer Instinct (won a live tournament in this game, Riptor was the best), Primal Rage, Street Fighter II, etc. I remember playing Off Road a lot too.
Also played a lot of different pins...I remember playing Demolition Man, Adams Family, and Star Trek Next Generation the most.