Chrono Wiki
Chrono Wiki
Japanese Name Aecytonyx (エイシトニクス Eishitonikusu?)
SNES / PS Name Leaper
HP Defense Magic Defense
800 192 30
412 10 360
Weak Absorbs Immune
None None None
Location Giant's Claw (Middle Ages)
Treasure Shield Sphere
Charm Elixir
Techs Stomp
Electric Burst
Counters Electric Malestrom
Combo Counters None
Combos None

The Aecytonyx (also known as Leaper in the SNES/PS version) is an enemy in Chrono Trigger. It appears in the Giant's Claw in the Middle Ages. They share the same sprite as Crested Sprinter, who appears far earlier in the game. Yellow and small, they sport long tails and a big horn in their head that can be used to trust into their enemy and cause damage.

Battle and Strategy[]

Normally appearing in groups of two or more, they are generally easy to kill. Since their physical defense is relatively high, it is better to use Magic against these creatures, or Techs that, albeit being physical, deal Magic damage. Able to jump relatively high, they perform a tech called, Stomp, in which they jump atop an enemy and stomp them.


Aecyto-, in the name, is an adaptation of the Latin prefix Alecto- which refers to dinosaurs with horns. Additionally, these creatures resemble Hadrosaurs, which run at high velocities and share similar cranial plumage.