Ver. 1.1.5 patch notes:
[b]Stage 2 is now in the game and it includes the following:[/b]
[list]
[*]a new boss: Slime Skull;
[*]a shotgun;
[*]a 'morphing sphere' transformation with tiny bombs;
[*]6 new areas;
[*]7 new enemies;
[*]a new stage song;
[*]3 new achievements;
[*]Some glitch fixing and various enhancements;
[/list]
Hope you enjoy Stage 2! I am now beginning work on redoing Stage 1.