Blocks that i want: Ice block. This block can disappear if you stand in this block after a few second. This block appear again after a few second. Snow block. This block slowdown robot. Magnet. Magnets can attract B that have distance 2-3 block from them. Magnets turn on and off in a seconds. If B attracted by active magnet, it can't move. It can move again after the magnet inactive. Fuel can. This can refill 25 of B fuel. Game mode: Time attack. Level creator can choose the time between 1-15 minute. After the time end, B will dead suddenly. Fuel mode. B have 100 fuel at the start. 1 step cost 1 fuel. After the fuel empty, B can't move anymore. That's my request, hope you agree with this!