Blue Cup escaped and you must find him.
Take the LETTER from the desk to read it. Walk to the right to leave the house and walk to the left. The road is blocked here so you can’t go further. Pick up the ROCK left of the sign and use it on the hole on the right side of the sign. This will eliminate the worker below and you can take the SIGN. Walk back to the south, then go north left of the building towards the river.
Use the sign on the river in order to cross it. Down the street use the door on the left and talk to the man. He’s looking for his remote. Use the sofa to search but all you can find is DANDRUFF. Use the door on the right to leave the house and use the door on the right to enter AGA’s home. Talk to him and he’ll tell you he’s looking for dandruff. Give him what he’s looking for and he’ll give you a REMOTE. Walk to the left to leave and use the door on the left again to enter the house.
Use the remote on the TV. There Mika has some news so you decide to search the city and check in to a hotel.Talk to the guard in front of the stairs but he won’t let you pass. Give him the letter from Blue Cup and you can go up.
There are a lot of doors but in front of you is a painting. Look at the painting and it tells you to enter one of the doors. One leads to good, the other to bad. If you want the bad, use the door on the right. It’s number 666. If you want to good ending use door 665 on the left of the painting. There you will find Blue Cup again.
Game source: A copy of the game was found here on the internet.