Guxt Shield powerup: --------------- After beating the bosses on stages 1-3, continue shooting at the eyes to reveal hidden shield powerups! Each eye contains such a powerup. Remember that the boss can't kill you after it has been defeated, so don't be afraid of it! Cave Story cameo: ----------------- In Stage 4, when there's a dotted line made out of land blocks, fly over the rightmost block to reveal a pair of glasses. Shoot at them to reveal Jack from Cave Story.
