Translation: Interchangeable-Level Pinball Machine - Features scoring functionality and swappable game panels for level selection.Customizable difficulty through modular obstacle placement. 

Easy printing with minimal removable supports. Tool-free assembly using 3 rubber bands (flexible length requirements).

Recommended ball: 10-11mm bearing steel balls. Includes printable 11mm ball in 3MF file (note: 3D printed balls perform poorly due to low weight and imperfect roundness). Multiplayer mode allows alternating obstacle configuration for enhanced gameplay. 

Assembly tutorial follows.

1	Insert the marble launcher handle here and attach a rubber band (wrap multiple times if too long).
2	Insert one handle into the hole.
3	Flip the pinball machine over and secure a rubber band here.
4	Attach a rubber band to this component and insert it into the handle's hole as shown in the diagram.
5	Repeat the installation on the opposite handle.
6	Finally install the bracket, select a game panel to insert into the pinball machine, and you're ready to play.