You have to choose a weapon/power choose a map and an enemy. Click with your mouse to shoot. For each weapon/power, it tells you what to press to use the special move you press space for most of the weapons/powers, and use the 1,2,3 keys for the engineer. To shoot you can use your mouse, or press e to start, and q to stop, but it does not work for some weapons. Guys if you have a shield enemies like the sniper or the robot can break through your shield, and there is a move that I didn't know about that when you are the shuriken king and you press E and Q at the same time it makes a new special moove.
It took me a while to make this game hope you like it. Guys if you want me to add something please tell me. Here is one of my best games I recommend for you: https://scratch.mit.edu/projects/473819106/ And you can advertise if you want to.