Gatekeeper

Game description:

"The criminals are getting closer. You can see their silhouettes in the distance, their weapons drawn. You know that you have to stop them before they reach the gate, but you're not sure if you'll be able to. You take a deep breath and steady your aim. You know that this is your only chance. You fire your weapon, and the criminals fall to the ground. You've done it! You've stopped them from reaching the gate. You turn to your team and smile. You've worked together to save the day."