So, I was going to play lockdown, but wanted to practice my shooting while using the speed boost. Then, I realized I couldn't do that alone. So, that's pretty much the idea:
There should be a place with four thing, like in Lockdown, for choices:
None; Speed Boost; Invisibility; Guardian;

For guardians, there should be a difficulty mechanism to make the robots more powerful.

That's all.
Please tell me what you think of it.