Destroy Black Bart and clear out Dead River Canyon on normal or higher difficulty

Equip a second XA-12 Rocket in Dead River Canyon

Destroy Black Bart without taking damage on normal or higher difficulty

Destroy the Cargo Ship at Mortar-Villa Airfield on normal or higher difficulty

Collect the hidden shield pickup at Mortar-Villa Airfield

Destroy the Cargo Ship before it leaves a second time on normal or higher difficulty

Destroy the Pulverizer in the Raw Material Nano Mine on normal or higher difficulty

Collect the hidden shield pickup in the Raw Material Nano Mine

Avoid damage in the Pulverizer room for 30 seconds before completely destroying it on normal or higher difficulty

Destroy the Desert Robo-Train on normal or higher difficulty

Sneak past the Striders by only moving while they're dancing and reach the Energizer

Collect enough Nanometal from the Desert Robo-Train and earn two extra lives on the mission complete screen

Escape the Nanometal Curing and Cooling Center on normal or higher difficulty

Destroy an enemy Microtank in the Nanometal Curing and Cooling Center without shooting it

Destroy the Nanometal Mountain on normal or higher difficulty

Complete the Nanometal Mountain stage in 3 minutes or less on normal or higher difficulty

Destroy the body-swapped Microtank in the Underground Recycling Plant on normal or higher difficulty

Starting from the first room of the Underground Recycling Plant, cross the electrified floor rooms without getting zapped on normal or higher difficulty

Use Black Bart's hat to reach the body-swapped Microtank in the Underground Recycling Plant without provoking any passive Microtanks on normal or higher difficulty

Destroy Stealth Tank and shut down the Underground Recycling Plant on normal or higher difficulty

Starting from the checkpoint of the Underground Recycling Plant, reach Stealth Tank's room without falling in the molten Nanometal on normal or higher difficulty

Collect the hidden extra life in the Underground Recycling Plant

Shoot down Strike Blimp and destroy the Atmospheric Reduction Center on normal or higher difficulty

Cross the first room of the Atmospheric Reduction Center, from the first low platform, and reach the button without touching the floor on normal or higher difficulty

Shoot down Strike Blimp without collecting any shield pickups on normal or higher difficulty

Destroy Slither and the Magneto Synchrotron Transporter on normal or higher difficulty

Find the XA-12 Rocket at the Magneto Synchrotron Transporter

Destroy all enemies and the Magneto Synchrotron Transporter in 4 minutes or less on normal or higher difficulty

Destroy the Gnatcraft Carrier at the Frozen Lake on normal or higher difficulty

Cross the Frozen Lake without falling through the ice on normal or higher difficulty

Destroy the one of the Gnatcraft Carrier's turrets on normal or higher difficulty

Climb Mount Mutank and destroy the Radar Dish on normal or higher difficulty

Collect all of the snowboard bot heads and the Nanometal crate while climbing Mount Mutank on normal or higher difficulty

Destroy the Radar Dish on Mount Mutank without firing your main gun on normal or higher difficulty

Reach the Rail Gun Launcher at the bottom of Mutank Slide on normal or higher difficulty

Complete the Mutank Slide in 1:45 or less without using any Teeny-Weeny Tanks on normal or higher difficulty

Reach top speed and launch from the Rail Gun Launcher on normal or higher difficulty

Collect the extra life floating over the Rail Gun Launcher track

Destroy Mutank and save the world on normal or higher difficulty

Destroy Mutank without the doomsday countdown falling below 500 on normal or higher difficulty

Have 5 Teeny-Weeny Tanks in reserve

Collect 10 P-Brains

Destroy an enemy while manually controlling a Teeny-Weeny Tank

Have four weapons equipped and assign at least one P-Brain to each weapon and system

After defeating Stealth Tank in the Underground Recycling Plant on normal or higher difficulty, while wearing Black Bart's hat, check yourself out in a mirror

Destroy Black Bart and clear out Dead River Canyon on hard difficulty

Destroy the Pulverizer in the Raw Material Nano Mine on hard difficulty

Destroy the Desert Robo-Train on hard difficulty

Destroy Stealth Tank and shut down the Underground Recycling Plant on hard difficulty

Shoot down Strike Blimp and destroy the Atmospheric Reduction Center on hard difficulty

Destroy Slither and the Magneto Synchrotron Transporter on hard difficulty

Destroy Mutank and save the world on hard difficulty

Collect the four extra lives hidden in The Maze