1) The puzzles are stupid - no logic to most of them whatsoever. Had to use walkthrough. The camp area was very simple and straightforward, but the rest of the game made absolutely no sense.
2) Didn't find the game funny or witty. The story is not intriguing at all. Maybe most of the jokes were lost in translation, I played the English version. Probably the worst point and click adventure game I have ever played - maybe second worse after Drascula.
Actually there's a whole shitload of crazy Russian adventure games which are much worse, but AFAIK Teen Agent enjoyed a moderate international success for some reason.
3) Play only for research, there's no fun in this game. If you decide to play this pile of crap - do your self a favour and use a walkthrough.
Use a candy on a cupboard heart-shaped hole to make a heart-shaped candy, wrap it in a wrapper you pick up from the ground, then gift it to the teen girl (the protagonist fancies!) and later find out she was approached by an old man who offered her money to kiss her. Teen Agent, REALLY?