Mission 85

This level has several black hole bombers, which are fully phased and very hard to see. You can only kill them in Blue mode or by disabling them with the Super EMP and then killing them normally.

There is also a trap drone generator near the starting point which should be destroyed early to limit the number of traps and drones you will have to deal with.

As a Gate level, this is mostly straightforward. However, after a while two spawners, which are sometimes cloaked, will be looping on the far right side of the level. They can be overlooked since they don't immediately spawn and afterwards are only fully visible in Blue mode.