Here is the full list of all 14 Adventure Apes and the Mayan Mystery achievements.
Raygun acquired
Jump ability acquired
Sawgun acquired
Bombs acquired
Swim ability acquired
Laser beam acquired
Pulsar acquired
Ghost Vision Acquired
Push ability acquired
Defeated Skull Demon
Defeated Arachnomax
Defeated Squidephant
Defeated Magmatoro
Defeated Horatio Hawk, wow!