With the ongoing mobile gaming boom that shows no signs of stopping any time soon -- if it ever will -- a lot of retro games that people have fond memories of are being ported over to iOS. One of them is The Bitmap Brothers' Z, now retitled as Z The Game.

But not all old games are as good as we remember them, and when you port a classic old PC game straight to the mobile platfrom, you better make sure it still holds up in the current age.