Pokémon Pinball
Mewtwo Bonus Stage
To get the Mewtwo bonus stage, play both bonus stages per table (ie Seel and Meowth stages on the blue table, Gengar and Diglett on red.) The next bonus stage will be Mewtwo's stage.
Credit Goes To: Tom Dog via IGN Pocket
 Mewtwo Bonus Stage
 Animated Pokémon
 Double Your Prizes
Animated Pokémon
To animate Pokémon, go to the Pokédex and highlight one of the standard (or un-evolved) Pokémon. Then hold the Start button and watch it move!
Credit Goes To: POKéMON MASTER and Gogeta760 via IGN Pocket

Double Your Prizes
To "double your prizes" simply do this. When you get the CAVE bonus DO NOT GO INTO THE HOLE! Light up the letters C A V E again. Now when you go into the "cave" you will get double the prizes! (e.g. When you get the ball saver bonus it's 60 sec. instead of 30 sec.)
Credit Goes To: Andeliteon via IGN Pocket