Its a very low memory game but not support in 512mb ram devices.
512 mb ram devices not support any only one shooter gameloft game.
please Microsoft make it and more shooter game for 512 mb ram devices..
windows phone 7 256 mb ram device has a shooter game of gameloft( splinter cell) but 512 mb ram windows phone 8.1 devices not support any shooter game of gameloft.
so please Microsoft add support some gameloft shooter game for 512mb ram devices..