Well I suppose Number Muchers was easy (of couse there is no way to beat that game, you go on and on and on until what you die?)
Easy game to beat, MMM The Batman game, the one were The Joker trys to gas the city with his smilx, There was no way you can lose that game. All the bosses were easy to beat, expect maybe the guy that loves his bombs.
But hey you cant die because you can never run out of contuiens.
i have no clue how long it took me to beat Halo on Legendary, but i know that the damn Assualt and Escape from the Control Room levels took more than an hour themselves.
That game was fairly easy, but it was far from "the easiest game" Especially driving the warthog to the exit at the end of the game....