Tetris inspired mini-robot (Piece thrower arm)

The design is a mini robot inspired by the original Tetris. It consists of a body, where the head is attached with a pin and the arms and legs are placed with ball joints. All the pieces are inspired by Tetris, the extremities beign the geometries used in the game.
 

The extremities of the mini-robot can be changed as desired, making this a fun game (You can see it in the uploaded Video 2). This can be done through the ball joints, which apart from allowing the pieces to be put on and taken off, gives movement to the arms and legs.

One of the L-shaped arms has a launching mechanism. It consists of two pieces that are joined with pins, and inside it has a flat spring. Thus, placing the throwing piece on the top of the launcher, you can throw the pieces over and over again (You can see it in the uploaded Video 1). The pieces to throw are small Tetris geometries, with a hole to fit the thrower. The union pins may need a little sanding depending on the printing parameters or the material you use for printing.

I have printed the pieces with a layer thickness of 0.2 mm. In the .stl file that I have uploaded there are all the pieces in one build plate. You can print them all to play with creating different robots, or you can print just parts for one robot. In the .gcode file I uploaded you will find parts for one robot combination. You could change it to your liking. You could also print the pieces in one build plate in one color, but I have printed each Tetris piece in its original color, to give it a fun touch. Some pieces has supports, but are easy to remove.

Be careful if you are printing it for children. The pieces to throw are very small.