The YABASIC version of tanks had better AI and collision detection. When I get time I'll port the code over.
The kids only had 15 hours in total to complete their games, and some of them couldn't spell. I've made changes to some of the control systems over the requests of their designers where I felt it appropriate. Which is why they've come out looking so bad.
The point of it all was to show the kids what is involved in making a game - time, effort, and vision, all three of which were lacking in this case.
The club will probably run again - if I get some of the same teams back I'll let them create better graphics, sounds and control systems, but the people paying me to run it will probably want a new group of kids in, which will have the same results

Asteroid Dodger will be polished to near perfection if I ever get round to it.
(update)
Zombie Mania, the final game, was so complicated on paper I have had to abandon development in order to meet the deadline for getting the polls open.
(update 2)
Just hit the Play Again button on Jed In Space - there's something which isn't being re-initialised properly when the game restarts, which is causing the fall through.