Maybe you can finish the game without using my little walkthrough, but I did it just for fun.

I have a walkthrough here for you!
Detention! Walkthrough

You start in the classroom. Open the desk on the left. Pick up the blue pen holder. Open

the pen holder in the inventory to obtain a pen. Ask the teacher to let you go to the

bathroom, then use the door. On the corridor, talk to the janitor, and obtain a broken

walkman. Go to the boys' bathroom. Pick up the tape on the floor and the lighter in the

sink. Get back to the corridor, and use the wire. Quickly get the wire cutter from the

janitor's toolbox. Use the wire cutter with the pen to obtain a cigarette. Go to the

classroom and try to bribe the teacher with the cigar. He will only take one if he gets

heated. Look at the wires and note that one of them is for the fan. Use the wire cutter

with the wires. Then use the cutter with the spare red wire. Give the cigar to the teacher.

He needs fire too. Give him the lighter, and then pick up the keys from the teacher's desk

while he smokes. Now open your inventory and look at the keys: one of them is shaped like a

mini-crowbar. Use the keys on the walkman to open it, and then use the wire cutter on the

wire. Use the wire cut into two on the open walkman, and then use the tape on the walkman.

After you finished doing this, give the walkman to the janitor (on the corridor), and

then use the keys with the door to finish the game.



This walkthrough was written by Razorsharp.

Loved it.. I agree, the difficulty was just right amount.

working link:
http://aafiles.bicycle-for-slugs.org/full/Detention.rar

I enjoyed it ! It's well done, not too hard, not too easy... just fine :)