SDI, eh? Could it be an excuse for a full-blast strategy game crammed full with all sots of laser-spitting satellites and nuclear retaliation scenarios? Thankfully no, since I'm happy to admit that I'm as terminally useless at strategy games as the next man (the next man being Andy - he's pretty crap as well). So discovering that SDI is nothing more than a mere shoot-'em-up seems to me a very good reason for wild rejoicing in the streets. In truth, it's nothing more than a rewrite of that old timer Missile Command. You manoeuvre a small satellite about taking out baddies and, more importantly, nuclear warheads which just happen to float past, with a handy cursor controlled laser. Missing one of these warheads results in another bit to the game which involves protecting earth from a shower of splintering warheads. Gasp as your satellite manoeuvers deftly round the screen! Scream with tension as you switch to control of the cursor and blast away at an incoming ICBM! Collapse sobbing over the keyboard as your satellite gets hit by an unnoticed bullet at the same time... well, that's life.

It's sounds like fun, and it is full of nice touches, but the only real snag is that it's all a bit simple, monotonous, and dated, even though it's only two years old. Perhaps I'm having a bad month or something, but although this was fun for a while, I'm afraid that even if it asks nicely, I can't give it any more than 64%.