Complete The Sewers.

Complete Ro-Tek.

Complete The Lab.

Complete The Garden.

Complete The Roofs.

Have 99 Junk in your Inventory.

Unlock All Weapons.

Complete all Time Trials Levels without taking Damage.

Complete The Sewers Boss Time Trials Level in under 60 Seconds.

Complete The Ro-Tek Boss Time Trials Level in under 60 Seconds.

Complete The Lab Boss Time Trials Level in under 60 Seconds.

Complete The Garden Boss Time Trials Level in under 30 Seconds.

Complete The Roofs Zone 9 Time Trials Level in under 30 Seconds.

Trigger the Dodgson Dialogue.

Buy something from Fix & Chips' Vending Machine.

Buy something from Fix & Chips' Vending Machine inside Fix & Chips' Shop.

Destroy a Drill Bot by dropping Ceiling Spikes on its head.

Destroy a Helper Bot by dropping an Orange Pylon on its head.

Cause a Tentacle to destroy an enemy in The Lab.

Destroy a Barfing Bot with its own vomit.

Hit Chief with one of his own missiles.