Gears of War 2 on normal – play as co-op and earn a fair few gamerpoints – if your good enough and get the small challenges (like kills using the chainsaw on your trusty chaingun.)

Then there is Fable 2 – Full of easy little achievements and then the big ones for completing the main story.) This isn’t quick though. Mass Effect is another.

Guitar Hero World Tour has some silly easy ones. unlike GH3. Just create a female and a male character and bag yourself 2 achievements.

Both COD 4 and COD WaW are easy to complete on the normal difficulties. And both bag you enough points and also a lot of fun is had in the proccess.

So Far GH5 is proving easy – already bagged 175 in only a few hours. Completed it. Now just going through all the songs. They aren’t that hard and you can change the difficulty as they’ve removed difficulty related achievements to make room for more online/band ones, and the introduction of challenges, which also have come with their own set of achievements.

Skate 2 has a lot achievements and all but a few (The one for legendary status online and all the hall of meat… how to ou break your b*lls?) are easy with practice.

There are also glitched games like Avatar (I can’t remember what to do as I have only read about it and have never played the game myself – I prefer to get achievement the honest way.)

If you want really easy achievements try playing childrens games. Or sports… I hear.