ASSAULT SHELL v2.1 Update

Hello! Here's the first batch of updates for version 2.0! This includes fixes to gameplay balances, bugs, missing features, and more. [b]Player Ships[/b] + Increased the width of AS Alpha's main shot. + AS Alpha's SP Weapon 1 now bounce off the sides. + AS Alpha's SP Weapon 2's explosion lasts slightly longer than SP Weapon 1. + AS Beta's SP Weapon 2 will grow in size when it begins to expire. + Slightly increased the damage of AS Delta's focus shot. + AS Delta's SP Weapon 1 will do a combo of slashes when at max power. The slash size will not be reduced when the weapon is at level 1. + AS Delta's Weapon 2 no longer disappears when flies off the top of the screen. + Increased the movement speeds of AS Alpha and AS Delta. [b]Bosses[/b] + Added a secret extend on the stage 3 midboss. - Reduced the difficulty of the stage 1 boss. [b]Misc[/b] + Added an option to toggle vsync + Darkened the screen when inputting initials.