Mavericks are listed here so that each is weak against the weapon obtained in the previous stage. Note that there are two items to find in each stage: one Heart and either a Sub-Tank or an Upgrade.
In order to recover Zero's parts more easily, fight the X-Hunters where suggested here. Serges is weak against O. Ostrich's weapon, and has to be fought as second; Violen is weak against B. Crab's weapon; Agile is weak against M. Centipede's weapon. If an X-Hunter moves to an earlier stage you want to enter, enter another stage you already completed and exit from it to reshuffle the X-Hunters locations.
Maverick Stage
Items
Items (re-visit)
Weakness
X-Hunters
Overdrive Ostrich
Heart
Leg Upgrade (need W-Gator's weapon)
Crystal Hunter
Wire Sponge
Heart, Sub-Tank
-
Sonic Slicer
Wheel Gator
-
Arm Upgrade (need Leg Upgrade), Heart (need Leg & Arm Upgrades & F. Stag's weapon)
Strike Chain
Bubble Crab
Heart
Sub-tank (need Arm Upgrade & B. Crab's weapon)
Spin Wheel
Flame Stag
Sub-Tank, Heart
-
Bubble Splash
Violen
Morph Moth
Body Upgrade (need W-Gator's weapon)
Heart (need C. Snail's weapon)
Speed Burner
Serges
Magna Centipede
Heart (need Leg Upgrade), Sub-tank (need Leg & Arm Upgrades & F. Stag's weapon)
