I've only played short games lately.
Instead of listing one, I will just list a bunch I did for the past few weeks.
Phantasy Star 0
6 - lotsa grinding weapons in this. Makes it harder to research which are the good things and which things you should dump. (the total amount of grinding differs for each thing making you have to guess which will end up being the better weapon based on potential not just on what the initial stats tell you)
Tekken 6 (psp)
8 - buy this if you own a psp. Cuts out the excess modes from the home versions and is great to play on public transport. No online mode though which is a shame. Best to play Bleach Dark Souls on DS over this if you want online handheld fighter.
Tatsunoko vs capcom
8 - needs more characters, more moves (go back to 6 buttons) and cel shaded realtime cg endings. What's there is fun and has loads of replayability and the animation is really nice and smooth. (big update from mvc2 days but having said that these are 3d models) Online mode is ok if you can find people. This is a niche title though so don't expect non-anime nerds to flock to it.
Street Fighter IV
9 - deliberately made incomplete. Requires a stick and is missing deejay and thawk which would have been easy to include since the character design is finished. But we all go easy on it because it's finally a sequel to SF.
Doesn't deserve a 10 imo since the game uses boyband music for a fighting game which I reckon is an odd choice. tween girls are not going to play this.
Double Dragon Advance (GBA)
8 - play this everyday and is a great lil beat em up. Legit purchase, bought it on ebay, and has good balance with weapons and attacks making each of the different ways you fight have advantages and disadvantage. (just like halo you really need to change your attack style on harder difficulty)
eg Twirling spin kicks might be useles on easy settings but save your butt on hardest settings when pushing people is key to survival. Bats might kick butt on slo enemies but on harder settings kicking them before swinging is a must to prevent them ducking your swing. And as enemies are more numerous, faster, smarter (more agile) and the time limit becomes a factor you will always sweat trying to beat this on the hardest setting even on replays. But it is always your own fault for losing and using dumb tactics - the true spirit of a challenging arcade game.
Castlevania Order of Eclesia
9 - the game has great balance in difficulty that makes you respect bosses and pay attention to enemy weakness. No gimmicky touchscreen features, just a great metroid like platform rpg.
Just the right gamelength that doesn't stretch itself out too long. Don't listen to others the game is not hard.
Call of Duty Mobilized
7 - the single player campaign needed to be longer imo. Never got a chance to play this online with 6 people.
Dementium The Ward
6 - horrible horrible save system, lacks story, lots of repetitive areas, enemies are just variations of the same stuff you see early in the game, and the combat is weird (you have to wait until something stops flashing before you can damage it again). But it's a survival horror fps so I went easy on it because I don't see many of these.
Sonic The Hedgehog 1
7 - sonic is a good character but his abilities are best appreciated in areas where jumping at max speed on a hill with a slope can get you to super jump to get to places you couldn't normally. Otherwise it suffers from the same thing donkey kong country does: assumes you know where all places leads to before you get to them, without giving subtle hints. (just trial and error gameplay, unless you are jedi and can predict whats up ahead the first time)
King Of Fighters XII
6 - not enough meat on its bones. But a good start to get the series updated for the HD consoles. Makes sure you make the graphics a bit blurry in the options though, or you will see jaggies.
I plan on starting a rpg next, probably Infinite Space or something which I saw was out in oz now. I'm drawn to it because I am a fan of anime show called "legend of the galactic heroes" which is a space war epic with space fleets fighting each other. Maybe I am just in the mood for something original?