So you want a cheat or hint for UV, well here they are.

     1)  While  in the comic sections, click on the rightmost arrow to
advance  to the last comic panel before entering a room. Then click on
the "Next" arrow to advance

     2) While in a room, click on the score, then press the "x" key on
the keyboard to see what tool to use. Shogo

     While  playing  the game, use your mouse and double click the top
left or right screen to get full point then pass the level.