Playing the games via steam, unless I change the resolution to lower then back again the mouse cursor does not disappear. So I get two of the on the screen.
A cider port is a game that is actually the Windows version running through an emulator of sorts (think Wine if you know that), meaning it's not a native OS X app. Mostly these games don't work as fast/well compared to games that are coded natively for OS X, but they are easy to create which is why a lot of companies use it like EA.