Mission 22

Most of the spawners are behind shields. The shield generator on the right side protects the ones on the right and the one on the left shields the ones on the left.

You can destroy the right side one by firing blindly at it from the left side of the 3rd floor.

The bluetonium is in the spawner on the bottom right part of the level. There is a tall platform right next to it that cannot be activated. It will dangerously move if you touch it though

To get to the spawner there is a large platform on the very bottom left part of the level that you can drop straight down on. However, this level is programmed to loop the level. If you don't turn it off when you get to the spawner then it will either carry you off the edge (killing you) or you will be without a platform until it loops back around.

Remember to stop it when you get to the spawner.