Cacnea learns Needle arm at level 45.
For more info click link below.
somewere in the 30's and it evolves into cacturne and cacturne is a amazing grass type and I recomend it completely (make it learn needle arm)
Metagross learns Hammer Arm on level 45.
I guess that would be Earthquake. It learns Earthquake in level 52. But Hammer Arm is also an awesome attack that Swampert learns. Swampert learns Hammer Arm in level 69. Hope I helped :)
Ursaring learns Hammer Arm at level 67 in Pokemon X, Y, Omega Ruby, and Alpha Sapphire.
Currently, the last move Swampert learns is 'Hammer Arm' at level 69 however you can teach it HMs or TMs any time after this level.
arm
Sudowoodo learns Hammer Arm at level 47 and Wood Hammer can be learned by going to the Move Reminder. This applies for Generation VI games and may not work in older generations.
A butterfly needle can be left in the arm while other blood is been taking. This is very small needle.
You need to take the old needle or stylus off and take it to a dealer and replace it, you cn find this under the arm at the end of the arm.
The needle should form a 15 to 30 degree angle with the surface of the arm.
Things that can go on your arm include:ID braceletwristwatchbracelettatoosleeves of a shirt or jacketIntravenous needle in a hospitala friend or lover (hold your arm)
the ovarian cancer needle..... i know that from experience. really, almost any needle can, its just the way some people react to it