The Mayan Mystery is a retro-inspired metroidvania with an emphasis on exploration. You play as Mitch, and with the help of your best friend (Otis) and mentor (Dr.A), must stop Horatio Hawk from escaping the Mayan temple with a magical artifact! This is the first in a series of games that will take the Adventures Apes from one location to the next, one era to the next, all in an effort to keep the world's most precious treasures out of Horatio's hands! The full version one the Adventure Apes Webpage has 5 bosses and more than 100 rooms plus an illustrated instruction booklet! :)
I can't see why this game has such a low rating. It does get quite difficult, maybe they weren't expecting a challenge.
I usually steer WAY clear of Game Maker games, because they basically all feel exactly the same. The dev made a very respectable game here, I am a huge fan of platformers and usually quite critical in my judgement.
It's not going in the history books so to speak, but at the price I would for sure recommend purchasing for some platforming goodness..