If you successfuly hit your special attack while you are carrying a gem (it looks like a
diamond and is always in a treasure chest not a box or barrel) you will do a lvl2 special
attack, also if your health is noticably lower than your opponents & you perform a
succesful special atk it will also be lvl2 special, no buttons or anything are required
during the special atk its either you pull off a lvl2 special or fail, also if you KO your
opponent during a lvl2 special you will recieve an alternative ending to your battle
featuring the area the special was made in, also a note for the gem, if you perform any
other powerful attack while carrying the gem the dmg will increese but you will waste the
gem, also if you perform the special atk & fail to land a successful hit on the opponent
the gem is wasted.