You're trapped in a hostile world, with only one way out: find the eight cerulean circles.
Instructions:
Download the zip file and extract it. Run ld21_localcoder.exe and read the instructions on-screen.
Tools used:
Java + Slick (+ LWJGL) + Eclipse
Paint.NET
Cerulean is [inspired by\a clone of] Meritous by Lancer-X/ASCEAI.