UFO guide (3) - UFO bonuses
RED UFOs
- when filled until the blinking circle appears, they drop a life piece
- if defeated, whether at full power or not, they drop a life piece and a red blinking UFO
- the red UFO multiplier is 1x for both at full power or not
BLUE UFOs
- if defeated, whether full or not, they drop a blue blinking UFO
- the blue UFO multiplier is 6x for the UFO which is not at full power and 8x for the UFO that is at full power
GREEN UFOs
- when filled until the blinking circle appears, they drop a bomb
- if defeated, whether at full power or not, they drop a bomb piece and a green blinking UFO
- the green UFO multiplier is 2x for both at full power or not
MULTICOLOURED UFOs
- when filled until the blinking circle appears, they drop a small blinking UFO the same colour as your last picked UFO from the UFO gauge
- if defeated, whether at full power or not, they drop a small blinking UFO like the one from above
- the multicoloured UFO multiplier is 3x for the UFO which is not at full power and 4x for the UFO that is at full power
EDIT: @sothe01 : When you destroy rainbow UFOs, it transforms any blue item into a red item and viceversa it collects.