Achieved five-star ranks in all Time Attack stages

Completed a Coliseum Attack stage

Destroyed the 3 anti-aircraft guns in Chapter 8-2 within 5 minutes

Defeated the Giant Orb using Dark Knack

Defeated Gundahar's Robot using Massive Knack

Defeated the Chieftain's Mech using Brittle Knack

Unlocked all upgraded Knack characters

Acquired all of the Gadgets

Collected the clear crystals in Chapter 4-2 without being detected by the security robots

Completed a Time Attack stage

Completed all chapters on Hard difficulty or higher

Achieved 50 consecutive hits with the Combo Meter equipped