Space Invaders Emulator

Controls:

Left Shift - Insert Coin

1 - Start Player 1

2 - Start Player 2

W, A, D - Player 1 Fire, Left, Right

Arrows Up, Left, Right - Player 2 Fire, Left, Right

Use monitor refresh rate (will probably run too fast if > 60Hz)
Force 60FPS (might not be smooth if monitor refresh rate isn't 60Hz? Not sure tbh)