Here are the secret codes, if anyone wants to try them 😄

In the title menu: 

biggusdickus for the 'Swinger's Club' mode (everyone is naked)

bigdaddywheels for unlocking the "Big Chair Mode" option in the options menu

In the character selection menu:

robert (P1) and zloumoe (P2) for me as a character

cthulhu (P1) and fhtagn (P2) for Cthulhu as a character

valeria (P1) and priestess (P2) for Valeria the Pagan Priestess as a character

ninja (P1) and turtle (P2) for the 'Kung Fu Tortoise' 🥷🐢

In the chair selection screen:

takeadump for the 'Turbo Toilet' as a chair 🚽💨

Have fun!