0.9.0.5
Feature: Allow controller d-pad for movement, toggle via settings
Design: Better (?) music, repetitive, will improve variance next patch
Design: Boss music upon encounter
Design: Bosses now have more patterns, and are more challenging
Bugfix: inifinite loop detected on large number of bullet spawns
Bugfix: Projectile pooling performance
Bugfix: Projectile coloring was off sometimes
Performance: Pickups are no longer spawning out of player's reach
Design: Enter High score screen now dims the background, preventing back items obstructing vision
Design: HUD animating in/out on start/end game, continue and pause screens

0.9.0.4
Design: Bigger font for Steamworks certification
Performace: Main menu and Mission 5 major FPS boost
Performance: pickables are now pooled, better performance as there were hundreds of energy collectibles