Enter the following passwords without the quotes at the 'Main' menu while keeping your mouse cursor over the 'My Cricket' option. Deactivate the passwords by inputting the same password at the 'Pause' screen.
Unlock Fly Mode: Enter 'MALIK'.
Bowlers always have Full Stamina: Enter 'ASIF'.
Batsmen always have Full Stamina: Enter 'INZAMAM'.
Bowler always has Special Deliveries: Enter 'GUL'.