Cure II (also known as Cure 2 in the SNES/PS version) is the seventh Tech learned by Marle and Frog in Chrono Trigger. It fully restores the Hit Points of one party member. While being able to cast Cure II, it can be used outside of battle through the game menu. It is the stronger version of Cure.
Animation
Sparkles circle around then caster, and numerous sparkles shower upon the character this Tech is cast on.
Enemy Tech
This Tech is used by Specchio in his final form. However, he uses it on a character, instead of himself, healing 999 HP, plus the animation of this tech is more cut that is used by Marle and Frog.
Later, in the DS and Steam versions, is used by Alabaster Shade, healing around 2400 to 2580 HP or so.
Name Origin
The Japanese name of this technique (ケアルガ, kearuga) is the same name as a healing spell in the Final Fantasy series, which is often called Curaga in English.
Notes
Because the standard Cure spell can, at maximum power, heal any character to full HP for considerably less MP, Cure II eventually becomes obsolete due to its higher MP cost.