A quick update:

1. Added some shortcut keys for some of the functions:

Main Menu:

• Switch tutorials ( Q/E )

• Switch difficulties ( A/D )

• Start game ( Space )

Game Over Screen:

• Restart ( R )

• Continue ( C )

• Finish ( F )

2. Simplified Achievement conditions:

• “D For Defeated” ( Gold ) can now be achieved by achieving all initial-D Silver achievements

3. Display play counter in game state:

• Added a play counter on the upper right of the screen during gameplay, tells you how many play count that you’ve had since you started the game, or defeated the boss ( play counter will reset itself when boss is defeated )