I've been on a hardcore multi-directional shoot-em-up rampage these past couple of weeks and I thought it would be appropriate for me to show case some of the easy and quick ch33v0z that you might grab. These are all XBLA games, so you can get your cheev on right now!
Exterminator-Defeat the giant spider-10G This game is a good one for cheevos, for two reasons. It can be played in co-op mode locally or over live, and you can play the whole game on EASY to get the cheevz! This first ch33v0 can be snagged on the first level of the game. The giant spider is located about half way through the first level. It must be noted that the cheevo unlocks once the zone is completed.
Mutant Storm Reloaded
2x Multiplier-Get the multiplier to x2-5G This is a fun game! I really like it... a lot. It's got 89 levels of bullet laden action, and it's for the hardcore only. That being said, this game has 8 levels of difficulty so you can play the entire game on the lowest level and pick up a good amount of ch33vz. This cheevo requires that you get a 2X multiplier, which means you can't get hit until you get to that multiplier number. The good news is, that it should unlock in the second level on the easiest difficulty... so we are talking about 45 seconds.
Dive Master-Get 100 kills. Unlocks a Gamer Picture!-10G
In the world of multi-directional shooters, 100 kills is peanuts. You should have this bad boy unlocked in about 10 minutes... or it's free, guaranteed.
Booyah, get your old school shooter on and unlock some of those sweet ass ch33voz. Be on the lookout for some more SHMUPS, because my thirst is not yet quenched!