Arrow Heads

1. 
   Return To Sender

   Deflect a Shield Bear's leap attack.
   1.7%
2. 
   Spin It Real Good

   Put 50 arrows into a target dummy.
   9.2%
3. 
   Not(ch) This Time

   Get a kill in a minecart.
   8.4%
4. 
   Spray and Pray

   Fire 200 arrows in a match.
   4.4%
5. 
   Is That All You've Got?

   Get your first Ace.
   6.4%
6. 
   BIRBS NEVER DIE!

   Get your first Saviour.
   14%
7. 
   B O O M !

   Kill 2 people with an explosion.
   27%
8. 
   Who's Next?

   Get your first double kill.
   14%
9. 
   Is This Easy Mode?

   Get your first triple kill.
   1.6%
10. 
    NOOT NOOT!

    Get a double kill in the Penguin Skin.
    1.4%
11. 
    Vehicular Birbslaughter

    Get hit by a car.
    6.8%
12. 
    Roasted Duck

    Kill someone by using the stove.
    0.8%
13. 
    Can You Feel It? My Animosity?

    Win a round by all other players committing suicide. (Minimum 3 Player Match)
    6.0%
14. 
    Eye Spy

    Get a kill by blowing up the laser eye.
    4.9%
15. 
    Like Fish in a Barrel

    Get a double kill on people in water.
    2.5%
16. 
    YOU'RE COMING WITH ME

    Blow yourself up and kill someone at the same time.
    30%
17. 
    Death from Above

    Get a kill while in the vent.
    4.1%
18. 
    I'll Be Back

    Die by falling into lava.
    0.7%
19. 
    Doom from Below

    Kill a person in the vent.
    3.5%
20. 
    There Are Some Who Call Me…Tim

    While on fire, set the someone else on fire.
    28%
21. 
    You Call This Archeology?

    Die from a boulder.
    17%
22. 
    They're too Cute to Kill

    Lose in the first wave of arcade mode.
    2.2%
23. 
    Wait, What?

    Get squished by an egg.
    28%
24. 
    Did the Pressure Get to You?

    Lose in a 1-on-1 by committing suicide.
    27%
25. 
    New Fangled Internet Sorcery

    Complete a match online.
    0.6%
26. 
    <Insert Tragic Shakespeare Quote>

    Simultaneously kill the person that killed you, and vice versa.
    19%
27. 
    The Journey to Fab Begins...

    Unlock your first customization.
    21%
28. 
    Bear-ly Made It

    Beat arcade level.
    1.4%
29. 
    A Battle Finished, a War Begun

    Complete your first arena match.
    30%
30. 
    Heads Up!

    Get stunned by a coconut.
    0.9%
31. 
    Should Have Flown South

    Die from the snowball.
    12%
32. 
    T-T-Today Junior!

    Die from the falling bombs.
    17%
33. 
    Unlimited Powah!

    Kill 50 bears with Tesla Coil.
    2.3%
34. 
    Bear-icide

    Kill 200 bears.
    11%
35. 
    Slow and Steady

    Win a round after bombs have started falling.
    12%
36. 
    Get Those Weak Shots Out of My Face!

    Deflect 3 arrows in one round.
    2.8%
37. 
    It Came from Beyond the Grave

    Kill someone while ragdolling.
    1.3%
38. 
    Imperial Aim

    Win a match with under 5% accuracy.
    2.5%
39. 
    That's Embarrassing...

    Finish a game with 0 kills, and 10 or more deaths.
    1.3%
40. 
    Elevator Birb

    Ride the elevator on Cliffside for total of 5 minutes.
    5.0%
41. 
    The Flock

    Unlock all characters.
    1.8%
42. 
    Bowed and Dangerous

    Unlock all bows.
    1.9%
43. 
    Are Any of These Actually Arrows?

    Unlock all arrows.
    1.5%
44. 
    What Is This? Tennis?

    Deflect back and forth 3 times.
    1.2%
45. 
    Sweaty Palms

    Everyone but the winner has at least 9 kills.
    8.9%
46. 
    50% of the Time, It Hits All the Time

    Win a match with at least 50% accuracy.
    2.3%
47. 
    I'M INVINCIBLE!

    Beat all 25 waves of an arcade map without dying.
    0.6%
48. 
    GG EZ

    Your first perfect game (10 or more kills, 0 deaths).
    1.9%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 48 of them.