This was 'bomberMode' using emptyRun, an old engine I made that is just a game loop with helpful functions in its local namespace.
This is from a missle command style prototype.
This was my favorite, 'drivingMode,' which has sound and the car can be moved around. The projectiles used vector velocities and were part of a collision system with pygame.Rect's.
'Cannon Mode' used parabolic paths for projectiles and had gravity and velocity parameters. The boxes explode and distribute debris (particle EFX). This was a more advanced prototype of the features tested in the previous examples.
specialTest or ssMan was the culmination of the efforts on the togo engine. Animations, collision detection, physics, behavior sequences, etc.