Can anyone help me with the Clone Engine not loading? :\

Did you put both the BrawlEx Clone Engine Core Files and the CSS Roster Expansion Core Files into their appropriate pf folders?

My CSS came back after putting the file in the folder, but. My clone is not there?
Can someone do a quick lil' text tutorial on how to add something to the CSSRoster.dat?

Use the BrawlEx Config Utility to open up CSSRoster.dat, then increase the number above the list by one, and scroll down to the bottom. You should see a new slot for 00 - Mario. Double-click the 00, and replace it with the ID number for your clone (for example, if you followed the example tutorial in the OP, it would be 3F). Then click the Random button above the list and do the same process. Save the file, make sure it's saved in the BrawlEx folder on your SD Card as CSSRoster.dat.

Hope that helps!

Hmm, well in that case, I guess it's just information for the sake of information, haha.

An interesting little tidbit I wanted to share. The Subspace CSS seems to be modified a little, with Snake and Sonic being pushed up above the top row, the top row itself being cut off, and three BrawlEx slots being shoved in there. When I tried them, all three slots were Cloud (CSS ID #43). Nothing froze hen I beat the level with him, though. Has anyone made a Custom Subspace CSS code in case we want to use the clones in a little co-op action?

I would definitely suggest, if you're going to be changing some of Ike's moves anyway, to speed him up a bit. Shulk seems to swing around that giant sword pretty effortlessly.

Good luck on your project!

I have BrawlEX installed, and when I attempt to hover over a CSS icon, the game crashes.

I had this problem too. I manually replaced the respective Resources in the CSS Expansion Mod folder into the supposedly pre-built sc_selcharacter.pac and common3.pac Core Files, and then it started working.