Gatekeeper

The  is a Tier 5 Tank branching from the and  at level 60.

Design
The resembles the Musketeer, but its tip barrel extends farther back. Its pair of central barrels and rear decoration are unmodified,

Technical
Being a Musketeer upgrade, the fires bursts of projectiles. Rather than traps though, it fires blocks. All of the blocks go to your cursor. They are fired out with great speed but slow down a lot about half a screen-length away from your tank.

As the

 * Despite being a Multishot branch, it has poor close-range capability.
 * When fighting AIs or bosses, try and shoot slightly behind them so when they get low and flee, they will back up directly into your blocks.
 * Upgrade bullet speed to stave off the time until your blocks slow down.

Against the

 * While fighting it, try and see where its blocks start to slow down. When you have identified about the distance it they do this, hang around there as its effectiveness and surprise-factor is drastically reduced around there.