Everyone here that thinks this game is unbeatable, learn to figure things out. You click the little green dots when it changes. If you're not fast enough to do it, then that's you're fault. Deal with it
The best thing to do is to grind levels near the save point underground before the first boss. Heal between battles and use slash to cut down groups. When you reach level 10, grind levels with the Glow Worm. Then the rest of the game is a piece of cake.