Here are some cheats and tips for the game Sega Smash Pack.
Super Shinobi:
Level select:
Press “Cursor Left” or “Cursor Right” at the menu with the “Start” and
“Options” selection. The number at the top right corner indicates the
starting level.
Vectorman:
Invincibility:
Press “Enter” to pause game play, then press “D, A, Left, Left, A, D, A,
S”. Vectorman will change into a square that can be moved into enemies to
destroy them. Repeat the code to change back into Vectorman.