ActivityBase Easter Egg - Developer Space Invaders

1. Open ActivityBase.
2. Click on the Workbench (Activate)
3. Press Shift-Ctrl-Alt-{I} all together
4. A 'Dev Team' icon will appear at the bottom - use left and right arrow keys to move (disabled in some builds)
5. Shortly the team members will start buzzing around. Shoot them with the down arrow key.

If you have any items on your Workbench, you can shoot them too.