Mission 27

In this mission you must destroy the Sentinels to win.

To start, destroy the spawners and the bots. When you've killed enough a huge wall will start moving from the right side of the screen to the left. You need to quickly make your way up the wall before you are pushed off the screen (Super Jump, Double Jump, Monkey Climbing Unit).

When you reach the top a swarm of fleas will spawn to impede you

The bluetonium is at the top right side of the level. This is an easy time to get it.

It is best to wait until the last minute before jumping off the moving wall. After it is gone swarms of death balls will start to be aimed at your general location. If you feather the Hover Pack, tapping it to conserve fuel, you can slow your descent and easily dodge much of the swarm. You can also use the portal generator to put a portal in front of you and direct some of the death balls away from you.

After the death ball swarm the sentinels will finally appear. Destroy them and you can complete the level.

Optionally, after destroying everything again, a huge mainframe will appear, it is the first part of a clue to a secret level. Destroy everything and be very patient and a second huge mainframe will appear with another part of the clue (the most important part). Both mainframes can be hacked for huge amounts of research points.

After that it is possible to get a Gate to appear and an Overlord.