- No ads, no in-app purchases, only FUN! - 100% free! UNLIMITED levels, UNLIMITED hints. - Carefully designed and sorted levels to help relax and exercise your brain at the same time. - Works completely offline. - Very simple and easy to understand rules. - Undo a step or restart the level whenever you feel necessary. - Get a hint whenever you’re stuck. ------------------ Story: Dr. Anonymous has captured millions of dinosaurs for his experiment. Neutralize liquid chemicals and free the dinos!