You'll have to go in and customize your own settings before you can do anything at all in the game. Once you get going, it's an entertaining romp. You're a fighter plane trying to protect your carrier from enemy attacks, all while saving guys in parachutes and collecting bonus items. It's straightforward and looks promising, it just needs some of the kinks worked out.
But hey, they told you upfront that it's still in development, so there you go. I never played the first installment of the game, but WingNuts 2 looks like it would be a really nice addition to OMG Vol. 2 when it's compiled.
The package also contains many shareware games included as zip files. This is a nice extra, if just to save you from having to download them yourself from the Web. I didn't test them out, but there are a bunch of them on there. Should serve well for those looking for a new game challenge.
I tested the games on my two Macs: a desktop and a notebook. The desktop is an iMac G5 that handled everything perfectly. Games tend to tax processing and graphics on a computer more than most other things a user will do (aside from professional applications), but if you've purchased your machine in the last couple of years then this set shouldn't even be an issue.
I don't have access to the newer Intel Macs to see how performance fares. I would imagine that it would be pretty much on par as long as you're not trying it with the newer Minis (as the combination of the emulation layer and that integrated graphics chip may not be the best setup).
My laptop, the original 12" Powerbook, is just over the minimum specs listed on the packaging and handled most of the titles very well, even in full screen mode. If your machine is pushing it, then make sure you have no external applications running or you might get a little frustrated.
Adjustment on the graphics settings within most of the games can help if your computer needs a little boost.
And now on to more trivial things — presentation for the set is profoundly awful. The discs and manual are housed in a comically oversized clamshell case (imagine a DVD case that's been doing nothing but eating tubs of ice cream all winter) that could easily hold three times what it does.