Its not an achievement, its a silver skull. On the mission "Crows Nest" (the part where the bugs are coming from the pipes after you drop down and Cortona talks to you, at the end at the edge), you will notice that you can go underneath the walkway you were just on. The skull is at the back of that passage.
go to the campaign lobby. then press the "X" button and find the Grunt Birthday Party Skull. The Press the "A" button.... hope i helped :)
Sit on the toilet for a while.
the grunt birthday party skull makesit when you get a headshot on a grunt the grunt yells "yay" and explodes with confetti
This skull is a silver skull. It is strictly for your entertainment and you won't get an achievement for it.
You do not have to find the skulls in any recent version of Halo. If you mean Halo 2, then I'd recommend reloading the level.
the level is arbiter. i am going to make a video on how to get all of the skulls. my username is brendanspartan142
a grunt.
No but you can be a grunt in halo1
It is impossible to play as a grunt in Halo: CE (aka. Halo 1) without modifying the game.
They do the same thing they did in Halo 3. You can "activate" any of them during campaign for different effects. For example, the "Grunt Birthday Party" skull makes an extra sound effect and confetti whenever you kill an enemy with a head-shot. Unlike halo 3, you do not have to find them this time around.
you cant play as a grunt
There are no cheats, however there are the good old fashioned skulls which make the game more entertaining, such as, Grunt Birthday Party and IWHBYD skull, although they give you no real advantage they are very entertaining
you can get grunt mods for halo trial but not halo pc. If you want a grunt mod for halo pc, then you will need to mod it yourself with HMT v3.5, Spark edit v3.02, and/or HHT v5.
No halo reach does not have cheat codes. But, you can do glitches and turn on skulls, such as the ONI: Sword base credit glitch or the grunt birthday party skull, and even the Grunt dance party.