F16 Renegade - Level Warp Cheats:

At the F16 Renegade title screen, hold one of these button combos and then press Start. Note that these only will work for 1-player mode, however.
 

Effect                           Code

Warp to Level 2            Hold A.

Warp to Level 3            Hold B.

Warp to Level 4            Hold A and B.

Warp to Level 5            Hold A, B, and Select.