The difference here is the inclusion of elements of tower defense games. Each level has a base Q-Force, but there is more than sitting waiting for the enemy to come to us. The Ratchet & Clank universe works well in this manner: the gun turrets are diverse and fun and promise, while multiple enemies fit well in the clips we've come to expect from the Tower Defense genre.
To build defenses need screws as in all games of the series, and harvesting them requires a bit of scouting out the base. It's an interesting dynamic, require risking base defense while hunting finances to strengthen further. There are going to start a level with a gun, here is entering the traditional gameplay of Ratchet & Clank and springs into action with a complimentary frenetic combat with excellent weapons and platforms.