If you're looking for a first-person shooter that is slightly different from the standard run of the mill FPS, Tannenberg is the way to go. Gameplay, the feel of the guns and map choice is all solid and makes for a great experience, but Tannenberg is held back by its lack of players and a mediocre class system.
A hilarious 2.5D platformer which will have you wanting to play on due to the fantastic characters, solid storyline and first-rate voice acting. Flipping Death has a good mix of puzzles but is slightly let down by its somewhat forced platforming sections.
Airheart - Tales of Broken Wings is an intense twin-stick shooter that at times will have you on the edge of your seat. However, Airheart is let down by the vast amount of grinding it takes to reach its endgame, and with minimal story elements peppered throughout, it's hard to see a lot of players following through right to the very end.
MXGP PRO is a fun Motocross racing sim with deep levels of customisation but is let down by some odd physics, a steep learning curve and it's similarity to the previous entry into the MXGP series: MXGP 3. If you are a diehard Motocross fan, this game is for you, but for the casual gamer, MXGP PRO probably won't be dynamic enough to hold your attention for long.