BEST. GAME. EVER.
Cornerstone TSP Games has done this excellent Mac conversion of Pocket Tanks from BlitWise Games. Pocket Tanks is a straight-up homage to Scorched Earth, one of the best games EVER.
Basically it's a one or two-player artillery game where you man a tank and have to figure out the right velocity and angle to blow up your opponent, using a variety of creative and unusual weapons -- everything from laser guns to fission weapons.
At a time when even shareware games are in danger of getting hideously complex, I'm delighted to see Scorched Earth reborn for Mac OS X way. Please, download this game, and give CTSP the $15 or so they're asking for the game if you like it -- it's ridiculous fun.
CTSP's Web site has links to BlitWise's Web site, too, if you're one of THOSE people.
