Version 1.0.4

added dynamic HUD fade-out when one of the player ships is close to a HUD element
fixed an issue where the game would run slower than intended when played on a display that supports higher refresh rates than currently selected
fixed showing an additional C medal in the classic summary when finishing a complete classic run including the true final boss
fixed music volume going up and down when skipping the area summary
fixed some animations getting stuck during transition to the final phase in stage 8-B
fixed and removed some unfair ship-collisions in stage 8-B
fixed bullet-collisions sometimes not working on the true final boss
improved clarity of hidden enemies in stage 4-2 by moving them into view after some time