I've read the other reviews for this animation, and it seems like you say "Because that's part of the joke!" to everyone that points out something that was simply stupid.
Now, I gave this a chance, so I watched the previous episodes. I gotta say, you are VERY inconsistent throughout this.
Let's take a look at your Metapod 'joke'. When your Pikachu died early on, he became a Ghastly but still kept Taunt. Understandable I suppose, but then you randomly make a Caterpie forget it's moves for the sake of having a Harden battle. If you wanted to do that, maybe you should've just had the trainer catch a wild Metapod instead of a Caterpie, so having only Harden would make at least a little sense. The second flaw with the joke that makes it unfunny is that you HAVE another Pokemon, and anybody with half a brain would switch out the Metapod with something that can actually attack, or in the event that their others are KO'ed, would run away to save some damn time.
Also, judging from your voice, I have to doubt that you're old enough to know that cock jokes are unfunny 99% of the time. Placing a few Pokemon sprites side by side (that are obviously Pokemon and not a cock at all) isn't even remotely humorous.
Next is the appearance of Epic Fail Guy. Seriously, just because it's from 4chan doesn't mean it's hilarious when applied to anything. Most of the memes you're using in this series are either old and dead, or just not funny to begin with.
I don't have a comment on the Scyther joke besides the fact that it's pretty damn stupid that you've made every Pokemon in this series catchable with the basic Pokeball at full HP.
Now, you want to know what the worst part of this whole thing is? It's easy to make me laugh. I find even the dumbest things funny at times. This flash, however, didn't faze me at all.
So with all of that said, with the vain attepts at humor and the still terrible voicing, I give you a 2.
Easily the worst episode of the series.