Same here in Argentina... The only Arcade Games I have here is "Metal Slug, Blaz Blue, Taiko no Tatsujin, House of the Dead 3 and others"

Pop'n Music.

I can't play that. Sure, I can do Taiko on the keyboard without looking at the keyboard, sure I can play a different version of that on XBLA, but doing that with all those buttons is just...o_o"

it's like a piano/keyboard except most of the keys are missing and the ones remaining are huge

IIDX's only real issues are its timing window (which is harsh to the max) and its difficulty curve.

9 button Pop'n is easier to get into than one might think. It takes practice, but so does every rhythm game.

Managed #2 with my buddy in Time Crisis 2 once. good times.

But yea, any classic arcade games, i can dig. Point Blank, Puzzle Bobble, Mortal Kombat,etc. There are also some current gen games that I wish I could play again like Time Crisis, Initial D Arcade Stage 3, and Mario Kart GP.

IIDX is wayyyyy harder than Pop'n. The turntable is also a major issue.
And how ridiculously fast they want you to read the chords. I can regularly pass 10s, but anything above that is pushing it.

My fav is the one where you try to roll the balls up the ramp into the holes. So much fun!

As far as ones like the TC is referring to go, I'd say my favorite is Mario Bros. Miss Pacman comes second.

Well, yeah. The difficulty curve + turntable is the major issue (even though I honestly didn't have much trouble adapting to the turntable, but I also suck and play lower difficulties).

IIDX can be really fun once you get over the wall that you encounter around the 4-5s. I find that the most fun charts are around 7-8s. 9s are challenging but still fun. Once you get to 10s+, it just seems more challenging and hard than sensible and enjoyable, imo. My peak was at the 9s because I always hit the wall that you get around 10s. Turntable isn't a problem for me unless the song is super turntable heavy (I'm looking at you, good-cool songs).

Pop'n is super fun too like Mogsy says. The controller can get ridiculously loud sometimes though since you're essentially slapping giant hamburgers but the music selection on the Pop'n series compared to IIDX is vastly superior and varied. Last time I played Pop'n, I think I was doing somewhere around 24-28s? I don't play it as much though but I definitely could.

A real easy way that I personally find to be handy to reading IIDX and Pop'n charts is by first becoming acquainted to the colors of the notes on the screen. On IIDX, grey notes will be your bottom row of keys and blues will be your top row. On Pop'n, the colors are a little harder for me to get used to since there are 5 colors as opposed to IIDX's two, but they all go toward the center's. There is a special Pop'n note skin that helps if you're more accustomed to IIDX colors than Pop'n though and I found that that helps if you're color-dependent since it turns the notes from white-yellow-green-blue-red to just blue-tops and grey-bottoms. After a while of playing, you just get used to glancing at the color and position on screen and you improve that way.

Definitely high learning curves but once you get your technique down, the games are super fun. :3

Yeah, I play Pop'n with Beat-mode on. I'd like to learn the colors, though, but it's embarrassing to fumble around so much at the arcade. I'll learn more with time perhaps, but I dunno if I'll actually have time to get into Pop'n since I don't have a controller and school shall soon be having all of my time.

I think 9s-easier 10s are the most fun IIDX charts. 8s are a bit too easy for me, but there are still some fun charts. I still want to be able to at least pass some 11s, though. And passing 12s would be amazing, but I feel like I won't ever be able to do that; save for the easy ones maybe (still not there) And then there's those songs that have easy Hypers and ridiculous Anothers-- I want to at least be able to pass those ones.

Favorite would be Time Crisis 4

Though i'm not FULLY updated on arcade games because i don't really go to arcades that often

And in addition the Arcade that updates/adds new games is too far from where i live

DJmax technika 3 and tekken 6