Trials HD, Splosion Man, or Shadow Complex

these are the 3 arcade game son sale and i want to get one before the price goes back up but idk which one i should get.

" these are the 2 arcade game son sale and i want to get one before the price goes back up but idk which one i should get. "

Having played Splosion Man and Shadow Complex but not Trials... I'd say Shadow Complex.

Having played all 3 I'd say get Shadow Complex. It's definantly the best product.

" Having played all 3 I'd say get Shadow Complex. It's definantly the best product. "

Shadow complex. 

Shadow Complex. It will get you so much playtime, and it is just cool.

Shadow Complex.

If you often play with friends my vote goes to Splosion Man. If not, both Shadow Complex and Trials HD are great, pick based on the demo you preferred. If you can't do that then get Shadow Complex.

shadow complex by far

Shadow Complex without a doubt.  
Trials HD is good too, but Shadow Complex is a great little game. 
Splosion Man is alright, I guess. 

Shadow Complex. But Trials HD and Splosion Man are also great games.

Trials HD
 
I was hardcore addicted to that game for a couple weeks,
Easily in my Top 5 XBLA games of all time.

Shadow complex.

I bought 1200 points yesterday, planning on buying Shadow Complex but i didn't. 
 
So glad i didn't know i can buy 2 games instead of one. 

Shadow Complex and Splosion Man.  Shadow Complex is a great 2D side-scroller that handles combat and exploration equally well.  Splosion Man does quick, reflexive platforming that is almost reminiscent of the 2D Sonic games, but does it in its own unique way.
 
While I liked Trials HD, but the level design progressed from being exciting and challenging to frustrating and challenging.  On the easier levels you are told to go off high ramps and make big jumps.  In the later levels you are told to go over a box.  Sounds easy, right?  It's not and you have a high chance of pulling your hair out.

Shadow Complex.  >.>

complex shadows.

I bought Shadow Complex and Splosion Man and I think they're both awesome
 
But if you can only get one then I say Shadow Complex, but I really recommend both

" complex shadows. "

I have Shadow Complex and Trials. Shadow Complex is okay,didnt see the hype though. Trials is fun,but it gets stupid hard later. If you can deal with that,  I'd say Trials myself.

Buy all three.  They are all incredible games. 
 
Splosion Man:  the difficulty ramps up significantly over time, but it's flat-out AWESOME; the multiplayer component is pretty manic but suffered some serious lag issues upon launch...plus, it has avatar awards and there is DLC coming out for it with Comic Jumper 
 
Shadow Complex:  tons of replay value, great Metroid-vania style game, good story, great graphics engine, fun to speed run...but once you hit level 50, you'll probably never touch it unless you want the master challenges completed 
 
Trails HD:  tough...as...fucking...nails, but it's a great challenge that throws back to the days of "I'M RAGING SO HARD THAT I'M GOING TO DEVASTATE THIS CONTROLLER", good physics and graphics, fully satisfying when you do finally beat a level 
 
There is also the Inventory Blowout that is raging on until the 22nd, and there are a ton of great games in that:  Castle Crashers, Castlevania: SOTN, Alien Hominid HD, TMNT 1989 Arcade, Braid, Geometry Wars 2, Magic The Gathering: Duels of the Planeswalker....a VERY long list of games.

Battletoa....Shadow Complex.

Shadow Complex > Splosion Man > Trials HD
 
However, if you are on the more "Arcadey" side, I'd say:
Trials HD/Splosion Man > Shadow Complex
Trials vs Splosion is more of which playstyle appeals to you.
 
(Splosion Man is great if you have a friend to play with)

" Trails HD:  tough...as...fucking...nails, but it's a great challenge that throws back to the days of "I'M RAGING SO HARD THAT I'M GOING TO DEVASTATE THIS CONTROLLER", good physics and graphics, fully satisfying when you do finally beat a level  There is also the Inventory Blowout that is raging on until the 22nd, and there are a ton of great games in that:  Castle Crashers, Castlevania: SOTN, Alien Hominid HD, TMNT 1989 Arcade, Braid, Geometry Wars 2, Magic The Gathering: Duels of the Planeswalker....a VERY long list of games. "

I know I'm in a minority here, but I didnt like shadow complex too much. I just felt like autobotting through he game. I liked Splosion Man much better. Also lots of fun if u get drunk with a friend.  
Edit: About trials HD i cant tell bc I jut bought it myself.