Xenowork has built in Play Games feature of achievements and leaderboards. Achievements allows for the player to be rewarded for accomplishing tasks and leaderboards allows for the competition of high score in the game with friends or the world.
Due to the high polish of the game the graphics can be demanding, in order to get the smoothest gameplay it is recommended to close all apps when playing. Higher end hardware will also obviously perform better. So sadly lower end phones will most likely not play this game very well.
Space marshals gameplay is built around stealth gameplay where the play sneaks around pre rendered stages trying to complete set mission requirements. There are rocks that can be used for distracting enemies as well as plenty of weapons including grenades.
Twin stick shooter style game do not often control great with touch screens due to the lack of tactile feedback, while Pixelbite tries to mitigate this issue as much as possible, it is still a problem in some places.
Geometry Wars 3: Dimensions can be played with any Bluetooth HID compatible controller. Something that is very welcome being that a controller will give much more precise controls for such a hectic style game.
For such a popular game released by a very large studio, to see no immersive mode for the game is quite a disappointment. There is no reason to still see this feature missing from games two years after it's initial release in the OS.