Introduction
This is level 7 of the U-Tunnel.
Suggested Characters: 
Gameplay
In this level, since the platforms are far apart and platforms on the walls are relatively hard to reach, you need to use characters who can jump high and far away. By using the Jack-o-Lantern and the Lizard, you can jump high, and thus landing on the platforms on the wall becomes easier.
Moreover, since the platforms are in a spiral shape, so it is recommended to turn all around it until you reach the end of the platform, then jump. Therefore, it is recommended to use a slower-paced character, such as the Lizard, because this allows more maneuverability.
Only if you can change gravity in the air properly, this level can surely challenge a lot of players.