Arcade
Arcade games often have short levels, simple and intuitive control schemes, and rapidly increasing difficulty. This is due to the environment of the Arcade, where the player is essentially renting the game for as long as their in-game avatar can stay alive (or until they run out of tokens). Read the full article at the Wikipedia.
iiChantra
1.2 (19 Apr 2012)iiChantra is a crossplatform 2D action game with retro style graphics and modern gameplay.
Genre: Arcade, Platform, Shoot 'Em Up, Action 
Snuggle Truck
Steam only (27 Mar 2012)Welcome to Snuggle Truck, the award winning over-the-top physics-based indie driving game.
Genre: Arcade, Platform 
ASCIIpOrtal
1.2 (14 Nov 2009)Also, there is a browser version:
http://dl.
Genre: Arcade, Platform, Puzzle 
Lonely Ruins
by VAR studio
2012-01
(2 Jan 2012)
You are a robot on a rescue mision.
Genre: Arcade, Puzzle 
The Great Jitters: Pudding Panic
by kunst-stoff
1.0
(25 Mar 2012)
Pudding, don’t panic! A nervous little pudding is trapped on a ghost train in a haunted house.
Genre: Arcade, Puzzle 
Zen Bound 2
by Secret Exit
1.0
(19 Mar 2012)
Zen Bound 2 is a meditative puzzle game of wrapping rope around wooden sculptures.
Genre: Arcade, Puzzle 
Canabalt
1.0 (Humble Bundle for Android #2) (19 Mar 2012)Canabalt is the sublime, indie parkour platformer by Adam Saltsman.
Genre: Arcade, Platform 
Swords & Soldiers
by Ronimo Games
HD Release
(19 Mar 2012)
Swords & Soldiers is a vibrant, side-scrolling strategy game.
Genre: Arcade, Platform, Strategy, Action 
Snorms
1.1.2 (22 Oct 2012)Snorms is a third person (isometric) shooter game featuring dozens of upgradeable weapons, dozens of levels full of monsters, leveling...
Genre: Arcade, Shooter 
Sushi Quest
1.0 (13 Mar 2012)The Bobs have arrived on Sushi Island, let's explore it and maybe you can find the secret Cat Treasure! Features three playable characters,...
Genre: Arcade, Platform, Puzzle 
Catacomb Snatch
by UberSoft
1.7.1
(8 Mar 2011)
Catacomb Snatch is a 2D top-down shooter/RTS.
Genre: Arcade, Action 
On The Shoulders Of Ancestors
by jarnik
1.0
(8 Mar 2012)
Every time you die, you are getting one step closer to your destiny.
Genre: Arcade, Platform