The following is the recommended order of Boss to take on based on
weapon weaknesses. Note: Vile is weak against Yeti's ice weapon.

Bamboo Pandemonium
Earthrock Trilobite
Gigavolt Man O War
Avalanche Yeti
Burn Rooster
Optic Sunflower
Dark Mantis
Gravity Antonion

Use the following Boss order, with the corresponding weapon
weakness.

Optic Sunflower (Green Spinner)
Dark Mantis (Shining Ray)
Avalanche Yeti (Shadow Runner)
Burn Rooster (Drift Diamond)
Gravity Antonion (Melt Creeper)
Earthrock Trilobyte (Squeeze Ball)
Gigabolt Man-O-War (Crystal Wall)
Bamboo Pandamonium (Thunder Dancer)
Vile (Drift Diamond)
Copy Sigma (Shadow Runner)
Sigma (X-Buster)
Lumine (X-Buster)
Lumine, Angel form (X-Buster)