Full screen is recommended for higher quality visuals. You can go full screen from the games settings, just press the "Fullscreen and 1920*1080 resolution" button and wait a little.

"Chemical Odyssey" is an action-adventure game where you play as an alchemist on a dangerous journey. You have no swords, guns or magic, only potions that you can mix in specific ways to create different attacks, none of which will be useful in all situations. In order to succeed you must think on the fly, use combos and exploit the environment to kill enemies. 

The game features 8 unique and handcrafted levels, each with their own unique enemies and music, as well as 2 boss fights.

Controls (Explained in more detail in the tutorial):

WASD - Move

Space - Jump

Arrow keys or IJKL - Mix potions

H - Consume healing potion

E - Pick up/Interact