Bokura no 01 raw
Some kids go to the beach. Since this is a Mohiro Kitoh story, one of them tortures a crab to death with a fiirecracker because kids are evil.
They go into a cave where an old guy signs them up to a game about saving the Earth. Then two giant robots appear, old guy pilots one of them and destroys the other.
(SURPRISE PLOT TWIST: You die after you finish piloting the robot!)
Staff include a lot of retired people from Ghibli for some reason.
Since this is a Gonzo show, the robots are in awful 3D CG which is a major distraction from the scenes. This was a very good manga though, and those certainly weren't the important parts.