OK. I've now seen all your videogame related vids. Here follows my two cents:
1. I liked the Nintendo direct thing you did in the first game related video. I believe you should take this further and be consistent about it. Dress up each time you do a review, and go into character.
2. Technical improvement. The sound is bad. You should get a "lapel microphone". It is very inexpensive and will give your video a professional sound.
3. If you're going to give a review of SM3D World, don't review something else. Do that in another vid.
4. Delete the vids that have nothing to do with what your channel is meant to be about.
5. Have a friend of yours make a channel intro/logo in "After Effects", or do it yourself if you're familiar with the program.
5. Get a completely white background. Its very simple. Just overexpose the picture, and add some lighting. Here's a tutorial:
Truth of the matter is that you can do real good, get lots of views, and lots of subscribers. Do some ramblings, do some propaganda, do more parodies, give your two cents regarding industry controversy and so on. I actually see real potential here. Maybe call your channel something videogame related; "The Nintendo Gospel" or "The Nintendo Truth Channel", "Nintendo Glory" :D
Essay Pro