It shows your ranking

What is the cool down and how does it actually work? Many times when I try to attack an opponent it won't allow me bc it says they are on cool down and it gives a count down time frame...

When I leveled up to the Max, it increased the execution of my rate of fire tremendously....

As another person already stated it simply speeds the game up, your fire rate, the travel speed for you and the enemy, etc., just makes the whole game faster. I played 2 different accounts for a while and used it on one but not the other and there's little difference, it only costs coins to level up but I would recommend not using it and save the coins for leveling up your mobs, cannons and such.

I've never seen that locked before, but I play on the android version for my phone, under it is where you're able to complete tasks to earn bonuses such as extra cards, shields, stars, etc. Maybe check the store to see if your version requires you to buy that feature, there's no real need to spend money to play but since I play it so often and enjoy it I did spend a bit to unlock the triple cannon and get rid of ads.

It increases the speed that your mobs go when the travel over the orange speed squares on some levels. It has nothing to do with the speed of enemy troops.

Mine maxed out at level 51. Does it get any higher than that? If so, how do you do it?

It is the speed of all the characters progressing down the field of play - yours and enemies - so no negative effect and it just means faster games

So no one knows the answer…. Got it

The speed increases the amount of mobs u shoot per sec just like leveling up your cannon... so if u don't have enough cards to level up, u can increase the speed to do so...

I think it means the speed at which special character is released is reduced. Higher the level faster charge and faster disburse of ur giant or nexon

It would make zero sense to have that as a thing in the game. They would just give a fast forward button to speed it up if that was the case. Who in their right mind would speed up the enemy giving yourself a disadvantage and not being able to reverse it? It has to mean something else.

Why does it say a dollar amount?

This is the speed at which enemies are shooted at you. I mistakenly levelled it up to 20 and they come at me at godspeed.

how to restore it?

Effectively catapults Mobs through the multiplier gates

It's the Ejection Speed of the CANNON

Como protejo mi base?

Anyone ever figure this out?

Yes. We want to know