Enter your name or student ID to begin. Every player gets a unique set of flags generated from this ID. Write it down, because you'll use it again to resume, and you'll report it to your instructor when you finish.
18 cases, easy to hard. Type help once you're in for a full command list, and hint any time you're stuck.
Your progress and your whole terminal session are saved on this device, so you can close the tab and pick up right where you left off.
Once you have any progress, your name is locked to it. To use a different name after that, you have to erase your progress first.