For the PS1:

Arc The Lad Collection
Future Cop: L.A.P.D.

For the PS2:

Wild Arms: Alter Code F
Jade Cocoon 2
Makai Kingdom

For Nintendo 64:

Star Wars: Shadow Of The Empire

For the Dreamcast:

Sonic Adventure

Wii Fit

WiiFit
SSBB
Touch the Dead
House of the Dead 2&3 Return
Rayman Raving Rabbids
Puzzle Quest (Wii)
UFO: Afterlight (PC)
Gunpey DS
Resident evil: UC
Manhunt 2
Geometry Wars Galaxies (Wii)
Super Swing Golf Season 2
SimCity Societies

Maybe missing a few titles.

All of them purchased less than a month and most hadn't even got play time.
I need to cut back, way back. Now that I actually list them, lol.

Edit: Removed prices. OP didn't ask :)

SSBB, MK, Boom Blox, Wii Fit, Wii Ski, Fire Emblem, Zack & Wiki
WiiWare: CC Life as a King, Lost Wind

Battlefield 2142, Age of Mythology

i just bought another wiiware game..lost wind... i dont have enough space for another..i have to wait for nintendo solution for that. meanwhile im enjoying this games...

Fire Emblem Radiant Dawn

SMASH BROS! finally! ive been playing it the last 5 hours or so... subspace emissary is fantastic :)

I just bought Guitar Hero: On Tour (DS) and I'm having a blast. They created the Guitar Hero experience perfectly on the little handheld that could.

Well, here's what I got recently and today I got a Sega GameGear! Here's all the games I've got over the past few weeks:

Sonic The Hedgehog 2 (GameGear)
Sonic Chaos (GameGear)
Fighting Force (PS1)
Urban Reign (PS2)
Digimon World: Data Squad (PS2)
Unreal Tournament (PS2)
Goblin Commander (PS2)
Namco Museum (PS2)
Odin Sphere (PS2)
Dragonball Z Budokai Tenkaichi 3 (PS2)
The Lord Of The Rings: The Third Age (GBA)
Dragonball Z: Supersonic Warriors (GBA)
WarioWare Twisted (GBA)
Tekken Advance (GBA)
Advance Wars 2: Black Hole Rising (Gameboy Advance)
Phantasy Star Collection (Gameboy Advance)
Mario & Luigi: Superstar Saga (Gameboy Advance)
Assassin's Creed: Altair's Chronicles (DS)
Spyro: Shadow Legacy (DS)
Advance Wars: Dual Strike (DS)
Mega Man: Star Force Pegasus (DS)
Mega Man ZX (DS)
Ace Attorney Phoenix Wright: Trials And Tribulations (DS)
Guilty Gear: Dust Strikers (DS)
Magical Starsign (DS)
Dragon Quest Monsters: Joker (DS)
Disney friends (DS)
Super Monkey Ball (Gamecube)
Metroid Prime (Gamecube)
Pikmin (Gamecube)
Pokemon Stadium 2 (Nintendo 64)
Perfect Dark (Nintendo 64)
Donkey Kong 64 (Nintendo 64)
Star Wars: Rogue Squadron (Nintendo 64)
Nightmare Creatures (Nintendo 64)
Nightmare Creatures (Dreamcast)
X-Men (Sega Genesis)
Streets Of Rage 2 (Sega Genesis)