Foot part Wire Sponge stage: in the first "elevator part" do not take it instead let it pass and jump through the hole quickly attach to the wall at the right you will see a space at the left enter and get the foot upgrade.

Head Upgrade Overdrive Ostrich stage: after passing through the tornado part there is a part where you look instead of just falling do an air-dash and you will fall in a stair climb them to get to the head upgrade.

Arm Upgrade Tunnel Rhino stage: when in the part using the robot fall down to where the mavericks are but instead of right go left at the end you will see two crates get down of the robot and use the lighting power to destroy them and you will get the zero final.

Body Upgrade Blast Hornet stage:after passing through the part of the moving platforms dont destryo the enemies if you do the floor will fall down keep on going until the end jump and use the tunnel rhino power in the wall it will be destroyed revealing a secret room enter and get the body upgrade.