Yes, blow up all "Steves".

You need to time placing and igniting the TNT.

They also a really scared of the griefer, so you must sometimes chase them to the TNT.

Made that in a week on spare time.

This 4Kilobyte idea is really bringing up creativity.
And mostly it makes you finish games quicker.
As there is only so much to add to it.

Also check my Cave4k 3D game, some posts above