Best power-ups to use in the game are:
Color Splash - for an easier removal of orbs, you can go all the way up with this.
Backwards - you can always take advantage of the orbs going back.
Wrath of Moon - it rids you of those bad single orbs.
Tactical, beautiful, and wholly unique, the GOTY-winning sci-fi RTS returns with Homeworld 3. Assume control and battle through fleet combat in dazzling, fully 3D space while the award-winning story unfolds on a galactic scale.