DUCK TALES

Infinite Lives:
Go to the African Mines and you will be instantly transported to Transylvania.
Find the two extra lives. One is found by going  right, up the first rope, right
to the next rope and up, and it is in the chest on the topright. The second is 
one screen down and to the right of the section where you ride in the mine
wagon. Return to the mirror near the beginning of the stage, jump over the 
chest (so that you don't collect the key), and then return to the African Mines
to repeat the procedure.

Bonus stage:
If the 10.000 digit of your score is 7 (the fifth digit from the right) when you
accept a lift ack to Duckberg with Launch pad, you will stop off at a bonus 
stage on the way.