That's one more piece of evidence of growing ties between two former enemies.

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If there were only two such enemies it would be a surprise.

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The two have been enemies ever since a 2003 deal that went sour, leading to years of he-said-she-said recrimination and litigation.

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In both cases the player can lock-on to nearby enemies, fire two core weapons (a machinegun and the equivalent of a grenade launcher), and unleash a couple of charge attacks that are as explosive as they are damaging.

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It's in a cramped meeting room that looks out on the tennis courts at the New Haven (Conn.) Lawn Club that two old airline veterans--and onetime enemies--are meeting to discuss their plans to change fundamentally the way prosperous executives fly.

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The Gunzerker (no, really) is a scrapper, with the ability to deal added damage and wield two guns at once, and the Assassin is able to become invisible, misleading enemies into attacking a decoy as he withdraws or sets up a surprise attack.

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And needles were even sometimes used as weapons, usually thrown at their victims, although two inch-long needles called fukibari were carried in the mouths of ninjas and spat into enemies' faces.

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The other two are Eduardo Saverin, 29, and Sean Parker, 31, whom the movie The Social Network portrayed as enemies.

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