Birds:


Select a starting level, press Start, then immediately

hold A + B and press the D-pad in the direction

of the displayed Boss. The stars in the background will change

into birds.



Longer jumps:


Rapidly tap Start when jumping to remain in the air

longer.



Super password:


Enter A5 B2 B4 C1 C3 C5 D4 D5 E2 as a password for

all weapons, items, and four energy tanks.



Level       Password  
Airman      A1 B5 C3 C4 C5 E1 E2 E3 E4  
Bubbleman   A1 B2 B5 C3 C4 E1 E2 E3 E4  
Quickman    A1 B2 B5 C3 C4 E2 E3 E4 E5  
Heatman     A1 B2 C3 C4 D3 E2 E3 E4 E5  
Woodman     A1 B2 C4 D1 D3 E2 E3 E4 E5  
Metalman    A2 B1 B3 C1 C4 C5 E3 E4 E5  
Flashman    A1 B2 B4 C1 D1 D3 E2 E3 E5  
Clashman    A1 B2 B4 C1 D1 D3 E2 E3 E5  
Dr Willy    A1 B2 B4 C1 C5 D1 E3 E5