Just finished our first run through of the Thunderbirds game. The game play is very simple, but figuring out the best strategy isn't. We won, but only barely, so I would say the game balance is pretty good. And you can increase the difficulty as you get better, so it shouldn't ever become a walk-over.
The basic idea is, you have to defeat three of the Hood's evil schemes while at the same time performing rescues. A new disaster appears each turn, so you need to be performing at least one rescue per turn or be swamped by them (and lose) but every rescue you perform has a chance of advancing the Hood's schemes (so you lose). Then there's random events to thwart you. Having Thunderbird 2's hydraulics stuck when you desperately need to swap pod vehicles is not funny! (Actually it really is if you're not the player in Thunderbird 2 )
Overall I was very impressed. It was fun and it captured the spirit of the programme very well. I'll try to convince the gang to play it tomorrow and see how it holds up with four players (there were just two of us tonight). I have a feeling it could get chaotic very quickly. "You don't mind if I take Thunderbird 1 to North America do you?" "What??? Yes!!! I need it in Australia!"