... Strike Force Heroes doesn't have online saving...
... So he can't do that...
If that's the case, then right click the flash player plugin (the game screen), click 'settings', then go to the third icon from the left with a file icon, and then click and drag the bar 'till there's at least 100 kB to locally save on your computer.
This will save your files for your games, however keep in mind that while 100 kb isn't a lot of space, the accumulated cache and cookies over an extended period of time will take up a ton of space. I suggest you clean up your PC at least once a month.