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Babel no Tou
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Pro babel:
At the title screen, press Up, Up, Up, Up, Up, Up, Up, Down, Down, Down, Down, Down, Down, Right, Right, Right, Right, Right. The title color will change. Now you will play another set of harder puzzles. This is unlockable code given after completing the regular mode game (you must reveal and input the final password as well).
Unlock final passwords:
Every 8th stage in this game is a special stage. There are no regular puzzles nor prizes but there is something different. In these stages you must solve a puzzle involving some button pressing or holding or positioning the ladders to obtain one of the 8 symbols. Using these symbols after completing the 64 stage as a password you will get the real ending. Not sure anybody can do it by yourself just via trial and errors approach. Here is the complete list of the password revealing methods for all special stages made by reverse engineering instead. After completing the regular mode with this pass, you'll get the PRO mode cheat code for the title screen. After completing the PRO mode with this pass, you'll get the real ending..
Stage | Activation Method | Picture
Regular 8 | At the beginning of the room, press and hold Up + Right. When reach 3rd statue the picture will appear. | Valkyrie
Regular 16 | Press and hold Right and wait. | Ship
Regular 24 | Get a stair and walk to the right wall, continue holding Right against the wall until the picture appears. | Pac-Man
Regular 32 | Go left while holding Down button. Continue holding Left + Down and walk against the left wall until picture revealed. | Triangle
Regular 40 | Go to the left wall, press and hold Left + Up against it and wait until picture revealed. | Scorpion
Regular 48 | Go left, move both stairs against the wall to the left to form one high ladder, climb it and touch the wall at the upper point. | Worm
Regular 56 | Get the stair and in any place just hold Down and wait. | Lucky Cat
Regular 64 | Get rightmost stair and put it against the right wall, climb and touch that wall. Return stair to the middle of the screen, get to the left side using upper stair.
Now get leftmost stair and put it against the wall above the exit door. Climb up and touch the left wall at the upper point of stair. | Aircraft
Pro 8 | Go right to the 4th figure on the background, stand against it and press Up. Go left and do the same at the very first figure, then return back to the 4th one and press Up again. | Pac-Man
Pro 16 | Just go left and hold Left against the wall until picture appears. | Triangle
Pro 24 | Get stair and at any position press Up 10 times. | Ship
Pro 32 | At any point just hold Up and wait. | Valkyrie
Pro 40 | Get three stairs and put them in a ladder that ends above the exit door, then climb on top of it. | Aircraft
Pro 48 | Go right, get the rightmost stair and put it against the right wall. Climb and touch the wall. Do the same with another stair but against the left wall. | Lucky Cat
Pro 56 | Just hold any button except Select and Start for about 10-20 seconds. | Worm
Pro 64 | At this point you must have only 1 live. In this case, press B 28 times to reveal the last picture. | Scorpion
