Custom map: Train Stations minigame

This is my first minigame I've made. It is based on some redstone and tnt minecarts exploding if there are a lot of them at same place.
It has 3 maps, so people can play 3 rounds before reseting map.
Download link: "http://www.lapisks.weebly.com/uploads/2/1/0/0/21003318/ts_by_lapisks.rar"
It is pure vanilla minecraft, at least minecraft 1.6.1 needed, I recommend using 1.6.2.

This was designed for at least 2 people. Objective: Destroy their train.

Additional Notes

By pressing the sumotori button at the end, the whole spawn will self-destruct.

Play in GM 2 and also if your server is laggy you might as well want to "/gamerule doTileDrops false"
so drops won't occur.

You will need WINRAR to open the file.