COBEX - Cruising on Broadway Extra is TCK's remake of the ZX Spectrum game Cruising on Broadway, created with the permission and feedback from the original author of the software. The game involves colouring grids in each stage by moving over them while trying to avoid colliding with enemy ships called chasers.

You can press the space key to break lines and prevent chasers from following your ship, and there is also a combo system that rewards players with bonus points for continuously changing the colour of lines. Windows only.