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Party Pooper achievement in Halo MCC

Party Pooper

Earn a total of 250 Killjoy medals in matchmade games.

Party Pooper-0.5
6 guidesOnline Game ModeVersusCumulative +

How to unlock the Party Pooper achievement

    17 Jan 2015 17 Jan 2015 29 Dec 2017
    41 13 19
    Here's the way we did it.
    -Two players 3 controllers each
    -Halo CE playlist ( Join the game by searching at the same time or any other strategy out there that helps you connect to each other.
    -Game type to choose Classic CTF (20min games)
    - Maps: The number of killjoys varies for each map do to the length for example; The map Hang 'em High you would get 12-15 killjoys each player, Derelict 17-19 killjoys each player
    Taking turns go to the opposing teams flag and kill all of them. When spawned, kill the two dummy players and verify you have the killing spree. Give the signal to your opponent to kill you and he will be going to your spawn.

    On the way to your flag you should have spawned and your opponent will have all ready have one kill. He will get the triple kill making the count 4. Once the spawned he will kill a dummy and signal you that he has the spree. You will kill him and repeat the process heading over to his base.

    -You will get the Killing Spree achievement doing this method.
    -You can get a lot of Double Kill medals doing this method.
    -If one person gets the achievement, have that player just do all the killing sprees. Keep in mind that you can move the dummies accounts to the opposing player's flag for sprees to make the most of the time.
    - Thanks to BarriedU for making this method efficient and helping me get the achievement.

    EDIT: The max players has changed for Halo CE. It is only 2v2 now.

    Guide not helping? View 5 more guides for this achievement.

    Showing most recent comments. View all comments.
    GяumpyAdd me if you want to boost this and/or the legendary medals
    Posted by Gяumpy on 20 Aug 20 at 17:28
    arcticpenguin91Add me as well if you want to boost this. I have 4 controllers to boost it and can do the legendary medals at same time.
    Posted by arcticpenguin91 on 21 Aug 20 at 00:26
    Squiggles2013I got two controllers if anyone wants to boost this on 2v2. Also need legendary medals, splatters, grenade kills, ctf medals, KOTH medals. GT: Squiggles2013
    Posted by Squiggles2013 on 01 Nov 20 at 00:11
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  • jackster and dhjackster and dh318,203
    12 May 2015 13 May 2015 14 May 2015
    14 1 1
    This achievement requires you do get 250 killjoy medals in matchmade games. Killjoy medals are obtained when you end an opponent's killing spree (5 kills or more). This achievement used to be quite simple with a glitch explained in Spoof Ex's guide, but unfortunately, the April 21st update fixed this glitch.

    Extra Information

    My guide will center around two people boosting with four controllers. Boosting with eight people is just too inefficient. Gamestop offers a weeklong return plan for used items. This allows you to purchase three other controllers, finish multiplayer achievements, and return them for a full refund.

    I would highly recommend completing every other matchmade achievement before focusing all your efforts on this one achievement. However, while getting all the other matchmade achievements, get killjoys whenever possible. For example, when you and your partner are focusing on Domination (Earn a total of 100 Legendary medals in matchmade games), get a killjoy for every two exterminations your partner gets. Basically, just try to kill your partner when he's up to a killing spree.

    Guide (Setup)

    Both you and your partner are going to be searching in the Team Hardcore playlist. Start searching at the exact same time. If the game says "Players Found" and "Connecting Session" at the same time, you know you've been matched up with each other. Back out immediately if not.

    The map you will want is Midship on CTF or Assault. There are only five maps in the playlist, so it shouldn't be too hard to get it.

    At the one minute mark, have one dummy take the flag/bomb and stand up at the top at sword. Standing up at sword allows for less confusion. If someone is holding on to the objective, the game will never end.

    Guide (Grinding)

    In a condensed form, you and your partner will be running around with a guest, getting a killing spree, and dying by the hands of your main account. It's inefficient to earn killing sprees with your main account. Other than that, its mostly tips to save time. Make sure to have the other team hold the flag/bomb when you're getting too far ahead. This will balance things out.

    Communication is the most important part of getting killing sprees. When a guest spawns in, make sure to call out the location. Feel free to make your own callouts. The callouts I used were:
    Top (initial spawn - top part of base)
    Bottom (bottom part of base)
    Pink (pink part of the map off to the side)
    Pink Top (above Pink)
    Silver (opposite from pink, domish, and slightly silver)
    Silver Top (above Silver)
    Outside (outside part of base, close to middle)

    When a guest gets a killing spree, put them down in the middle by shotgun or in front of your partner's main account, and call it out so your partner can get a killjoy.

    Other than that, its mostly practice. Expect the first few to take longer than others, but you will develop a rhythm. If any of this didn't make sense, please leave a comment. I try to be fast to reply. Credit to Mutantkilla for being my partner for this achievement and helping to create this method. Both Mutantkilla and I managed to get this done in around 3.5 hours of boosting, granted we both had about 30% of it done from the other achievements.
    Showing only comment.
    UnInfamousGhostCheers on the Midship playing Assault or CTF call out. This saved me a lot of time wasting searching and getting idle banned playing on my own with eight controllers on two boxes!

    I would also notate that the playlist has since been updated to include Halo 3 maps, and the Heretic variant of Midship will end the game after going into a 1:00 additional sudden death with CTF.
    Posted by UnInfamousGhost on 20 Apr 17 at 05:33
  • CanaDa FwendCanaDa Fwend575,964
    20 Jul 2015 19 Jul 2015 19 Jul 2015
    10 0 0

    A Killjoy is a medal that you receive by killing a player who has killed 5 or more players in a row without dying. Progress towards the achievement can only be obtained in matchmaking.


    This guide is specifically for boosting the achievement after you have incorporated the killjoys you can receive while getting other achievements. If you have been boosting efficiently you should have around 150 more killjoys to obtain once you have completed all other boosting. I also will not explain how to boost in HMCC as it has already been well documented.

    Team Doubles:

    Playing this game type is best because it takes fewer players to lock down a lobby, has smaller maps, and has a game type that will allow you to play a match indefinitely while efficiently obtaining killjoys. Having fewer players will benefit you because that will mean less time spent helping additional players make progress towards the achievement.

    You will need one boosting partner. Both of you must have a second controller and account. Once you find each other select small maps that have ledges. Objective gametypes allow you to get several more killjoys as well. We found we were often playing on maps like Guardian and Lockout (and variations of Lockout). Midship is great too for reasons I will go over later in the guide.


    Have Player 1 kill Player 2's main account and dummy account until player 1 has a killing spree. Then Player 2 will kill player Player 1 for the killjoy. Player 2 will then continue to kill player 1's main account and dummy account until player 2 has a killing spree. Repeat until the match ends.

    Communicating and getting kills quickly is the name of the game. This is why small maps with ledges are best. You can shot a player as he is falling to his death to get and easy kill. Also we tried to use grenade kills quite a bit but noticed that while playing on Halo 3 we did not make any progress towards the Catch This achievement. (As of 18 July 2015)

    If you are playing a slayer gametype you can have your dummy accounts commit suicide to stop you team from winning. I would not suggest doing this until the time runs out in slayer but it can be helpful to get an extra killjoy.

    Halo 2 Midship Neutral Bomb:

    If this map/gametype is an option pick it! As long as one player is always in the vicinity of the bomb the match will remain at :05 indefinitely. We noticed that players always spawned at the top of the base too so having both players stand together at the edge overlooking the bomb and sticking them made the progress very quick and consistent. Plasma grenades are plentiful and a quick way of dispatching enemy players (We did make progress towards Catch This on Halo 2 maps). With this strategy I estimate we were both getting a killjoy every 70 seconds.
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