Help Games crashing regularly

[incsmiro]

Ok so I've finally encountered my first real problem with my SGS2, basically I've started playing 'my car salon' over the last few days and it run fine at first but now as the games become more advanced (lots of things happening all over the screen) the game has started to just freeze up and requires force closing. I've noticed on my program monitor widget that the app flashes up as red, don't really know what this means but obviously it's using too much of something! To be completely honest it's really pee'd me off because I don't really play games normally, I just don't see this as acceptable for a

 

[incsmiro]

Any answers? Aside from the stupid adverts that have been added to my thread!