I'm copy/pasting cause I'm lazy.
PERIL OF RECTANGLE COUNTRY
A long time ago, probably about 50 years, a hero was tired of the antics of the Monster Lords and their minions, so he set out to slay them. He did, and took their Medals of Proof, containing their souls to the Stone Chasm. He sealed the Medals of Proof inside the Magical Slab of Stone. Though, there was a small hole in the stone slab, so he sealed it off with his sword.
50-ish years later, a kid named Yarg gets bored, and the Sleepy advice Guy pretty much tells him to wander around in the Stone Chasm. Yarg finds the sword, and pulls it out, causing the gap in the Magical Stone Slab to release the souls of the Monster Lords back into their homes: Stonelite Chapel, Temple of Fish Lord, The Rhombus Volcano, Soul Portal, the Caves of Evile, Trapezoid Skytower, Fish Belly, and Palace of Glass. Monsters roam Rectangle Country once more. A few minutes later, reports of the Monster Lords' activity reaches Triangle Palace, where the King of Triangle Town sentences Yarg to kill the Monster Lords. Hilarity ensues.
non boring part
Maps and Videos
MAPS
Rectangle Country
Rhombus Mountain
VIDEOS
Rhombus Trail
Exploration
Demos
Demo 1 - Level 1 only
Play the demo on the newest build possible. Should run in the mid 800's though.