Need a cure for that Oscar hangover?  Try out these free games from developers Vogster Entertainment, Woozzang, and Inert Soap.

Robocalypse – Mobile Mayhem ($.99 -> Free): An RTS game originally crafted and released for the Nintendo DS.  The game features zany characters and dialogue created by Jay Lender (of Spongebob Squarepants fame) and Micah Wright. In the game you will be tasked with building up and commanding your army to defeat the menacing Demolisher.

The game features 10 unit types, 20 weapons, 17 campaign missions, 18 multiplayer maps, and a cast of powerful Hero robots.

Robocalypse – Mobile Mayhem is available for free today only (3/8/10).

Puzzle Devil Touch! ($1.99 -> Free): As you may have guessed by the title, Puzzle Devil Touch! is a puzzle game that features touch controls, duh.  In the game you are tasked with sliding blocks into the open holes on each of the 50 levels within in a limited amount of moves as indicated by the number on top of each block.  Gameplay is mixed up a bit thanks to some of the squares acting different, such as allowing your blocks to slide and using only a single move.  The game is colorful, has a retro feel, and is fairly challenging even for puzzle fans.

Much of the app’s description may be lost in translation, but don’t let that  turn you off.  It’s a well-crafted puzzle game that should keep you busy for quite a while. The game is available for free for an unspecified amount of time.

Fingerzilla ($.99 -> Free): A game of pure destruction.  You are Fingerzilla and you must destroy anything and everything on your iPhone’s screen by tapping like a maniac.  Certain items and people are worth more points, and you only have a limited amount of time to wreak havoc.

The game features a handful of levels to destroy, retro B-movie sounds and visual effects, and OpenFeint integration to boast about high scores and achievements.

Fingerzilla was only supposed to be free for a day, and that was three days ago, so download this one as soon as possible.