I love this game!
Wow...that game must have taken a loooong time to make! ^.^
I've unlocked everything (okay, so I just kept using 'Explode on mouse' a lot of times when I wanted something new) and I must say, you have some pretty fun stuff to do to the poor little thing.
The skins...eeeeh....I didn't really like them. I just stick with the default buddy...poor, cute lil thing.
I found an easy way to earn money when you're away from the computer, too! Go to Open Hand, and drag Buddy into a corner...then just leave the mouse with it attached to his hand, and your money will keep going up! It's not the fastest way...but it's a good way to earn cash when you're idle, and get everything unlocked fast.
My personal favorite thing to do to him...would have to be trapping him in a Gravity Shifter, and then dropping grenades all around him...or using the Earthquake mode, and making my own mini Apocalypse with the "Fireballs" God Power. Fun stuff!
You should listen to some of your reviews, though...and follow their suggestions. When you've got everything, tormenting an interactive Buddy with an unlimited arsenal does get old.