Weapons Master 15G
Use each weapon successfully.

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To use a weapon press , you need some distance between yourself and the enemy or you will punch them instead. All of the weapons function different and the criteria of using them successfully varies between them. Despite the description, it is necessary for the achievement that you preform a Head Jump kill, and get killed by a Head Jump and also get a Head Jump Stun and get stunned by a head jump stun. The Head Jump kill only be done in the Soul Snatch or 'Color the World' arena modes, and the Head Jump stun can only be done in the 'Grab the Gold' arena mode. If you are unsure which attacks you are missing, pause the game (), scroll over and select Player Stats, and then press again.
List of required attacks:

Hit an enemy with the Disk.
Kill enemy with a Disk explosion. This works on a timer, it will explode a couple of seconds after it has landed
Hit an enemy with the Paper Airplane.
Kill an enemy with a Paper Airplane explosion. Press again to detonate it.
Kill an enemy with the Wall Hugger (Bomb frog).
Kill an enemy with the Acid Bubble.
Kill an enemy with the Fireball.
Kill an enemy with the Grenade.
Hit an enemy with the Iceball.
Hit an enemy with the Dodgeball.
Hit an enemy with the Dart.
Hit an enemy with the Boomerang.
Use the Forceball
Use the Fan
Use the Vacuum.
Kill an enemy with the Head Bounce. This is not weapon related. This is only possible to do in the Arena VS mode 'Soul Snatch.' Jumping on the head of an enemy in this mode is lethal to them.
Get killed by a Head Bounce. Have an enemy jump on your head in 'Soul Snatcher'.
Get a Head Bounce Stun. Jump on an enemy's head in the arena VS mode 'Grab the Gold'.
Get stunned by a Head Bounce Stun. Let and enemy jump on your head in the arena VS mode 'Grab the Gold'.

Getting killed/hit with weapons may also be necessary for this. If you've done everything on the list and have still not unlocked it, go through the stats page and make sure you have at least one in everything.

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