There are many areas to explore in Narita Boy, and the things to explore in different areas are different, first of all, blue waters, you have to do everything you need to do, then leave the area from the terrace, and then the residence of the tech master compiler.
What are the key points for exploring the blue waters of Narita boy?
Blue Waters
You have to do everything you need to do and then leave the area from the terrace.
The residence of the technician compiler
You can see the red symbols, through interaction with the glitz-like thing next to the meditation area and the other two symbols, from the top of the technician. Solution: ∴, □, ∴
Old Telephone Booth
Symbols in the room: -, v, v
Blue Simulation
In the last area, use your floppy disk through the huge pool.
The pinnacle of permanent failure
When you get a technical key, unlock the switch in the previous room, jump and charge to the right. There is a blue area where you can climb up to it.
