Strike Force Bowling - Bonus characters

Mars alley:
Enter LEVELS as your name. Note: This also unlocks the night versions of the alleys.

All Strike mode:
Enter STRIKE as your name.

Alien Bowl alley:
Finish a round in tournament mode with at least a 180 score.

Dark Beach alley:
Get a score of 2 or more under par in golf mode.

Dark Castle alley:
Win any tournament.

Dark Chinese Bridge alley:
Get a hole-in-one at hole 1 in golf mode.

Dark Egyptian alley:
Compete seventeen challenges in challenge mode.

Dark Old West alley:
Collect at least 100,000 in overall skins earnings.

Mars alley:
Gets six skins in a skins match under the difficult or expert difficulty setting.

Night Ship alley:
Get four consecutive strikes in open play or tournament mode.

Alien bowler:
Close every frame in an open play game.

Robot bowler:
Pick up a 7-10 split in practice mode.

Skeleton bowler:
Get a hole-in-one at hole 13 in golf mode.

Big Head mode:
Unlock all bonus alleys and characters.