First: Make a user.

Second: Buy an guppy with any name you want.

Third: Close Insaniquarium.

Fifth: Open my computer

Sixth: Open Local disk.

Seventh: Open program files

Eight:Open Insaniquarium or Popcap Games.

Seventh: Open Userdata.

Eight: If it opens w/ notepad open it. If it does not open with notepad go to properties then change open with to notepad.

Ninth: Open Your latest user if it is user2,3,4 and so on. (In the userdata okay)

Tenth: You see many ÿ's. Copy 3 of them and then paste them near to other ÿ's.

Eleventh: Open Insaniquarium application and see your 2nd,3rd,4th and so on it depends what number you chose if it is user four and you have 2 users choose the second user. And see what happens to that user.

Warning: DO NOT play the adventure mode because it messed up.