Crayon Shin - Chan — Cheat codes

There is a popular debug mode cheat code for Crayon Shin-chan: Arashi wo Yobu Enji on the Sega Genesis: at the Sega screen, press B, A, C, A, C, A, B, A. A chime will confirm the code is entered correctly, and you can then use in-game button combinations for extra features like skipping levels, skipping cutscenes, and resetting the timer. 

Debug mode cheat
At the Sega screen, press B, A, C, A, C, A, B, A.
A chime will sound to confirm you have activated the debug mode.
A list of additional cheats can be activated after this code has been entered. 

In-game cheat codes
Skip cutscenes: Press Start.
Skip to the next level: Press C (if this is the last section, it will skip to the next level).
Restart the current level: Press Down + Start.
Reset the timer: Press Right + Start to unpause and reset the timer to 9 minutes.
Skip the current section of the level: Press Up + Start.