Hey guys, this instructable is going to teach you to make a smartphone [read: MOGA] game controller out of Legos and, in this case, a Wiimote. If you find this interesting/helpful/cool or anything else, I would really appreciate your vote in the Building Blocks contest. With that out of the way, let's get started!

Step 1: Build Your Case

You may notice that I'm not actually going to tell you HOW to build your case. Why? Because your phone dimensions are probably different than mine. So just build yourself a case that 1) Holds your phone securely 2) isn't absurdly heavy/bulky or otherwise awkward and 3) looks cool to you. Side note here, you need to make sure the buttons on your phone are accessible or else have a plan to get to them [I used a Lego sword].

Step 2: Choose Your Destiny! and by Destiny I Mean Controller.

This is the part where you decide your fate. Ok, it's really not that deep. But anyway, you get to pick from the Wiimote or the PS3 controller because that's what Android supports. The remainder of this instructable will treat the Wiimote as the default option, because that's what I had at the time.

Step 3: Make It Work

Here's the geekout part. Once you've got your controller grafted onto the case, it's time to link them. [This method only works on pre-android 4.2 devices, so new phones need not apply. I think the PS3 controller will work, but I don't have one.] Step 1: Download the wiimote-link app here: http://bit.ly/1uMS1IB Step 2: Follow the in-app instructions. Step 3: Enjoy!

Step 4: The End

Well that's it. Here are some helpful tips/reminders:

This will not work with iPhones. At all.
If you want to play N64 or GBA emulators, make sure your case can fit a Wii Nunchuk.
Apparently this app (http://bit.ly/Xmir4S) works with Android 4.2+ except for Samsung or HTC phones (with factory Roms, that is), but it's $3 and I have an old phone.
Make sure the case is strong enough that when you pick up the controller the case doesn't fall apart.
If you want to play NES games, I suggest you look up NES Nostalgia. I use it and it's awesome.
I found the app for the PS3 controller, you can find it here. Make sure you read the description because it's $3.

Alright, guys, thanks for checking this out! I hope it was helpful, and I'll post a video of mine later on. Peace!

P.S. This is entered in the Building Blocks Contest. I would really appreciate your votes!