Acquire Skill:
L BLACK RIGHT X LEFT
Max Phystical:
L R A DOWN BLACK
Unlock all Socials:
BLACK, UP (left stick), Y, DOWN (D-Pad), R
Unlock the Cheat Gnome:
LEFT Y DOWN A X
Max Mental:
L B A BLACK DOWN
Max Artistic:
Y DOWN BLACK A B
Power Social:
DOWN BLACK RIGHT X LEFT
Team Photo:
UP DOWN X UP DOWN (on credits screen)