Thanks for the quick reply Zero. To be honest I have absolutely no idea how to install it manually (my brother and I were just trying to follow the tutorial from the wiki), so that MultiMc thing sounds great! I'll post back after trying it to let you know how it goes.
Thanks a bunch!
It happens when I'm trying to load a world and gives me the following crash report:
I've been wanting to get the pixelmon mod up and running ever since I heard about it, so I'd really appreciate any help. Thanks!