First of all, thanks for feedback.
By this, you mean 0.01% to 98% win chance?
Not sure if I understood you correctly. We got effective 1% house edge. Let me explain it in the detail.
The dice is a random number 0-100, you guess if it is more or less 50, if you lose you just lose your bet, 0% extra (this happens with 50% probability), if you win, you win 1.98*bet (which also happens with 50% probability). This makes house edge to be 1% not 0.01%
Created an account. Logged out. Tried to login but it's requiring me a password
Well I suggest you not to log out if you did not set the password nor the email.) Now you do can restore you account via IP and localStorage, just drop us a message. However it is a valuable comment, we will make the password setting request more prominent.