+.TP
+\fB\-t\fR <\fITIMESTEP\fP>, \fB\-\-timestep=\fR\fITIMESTEP\fR
+Changes the physics timestep, default is 50000.
+.SH FILES
+ekitai reads in a file with special characters that represents simulation elements. here is a list of valid characters:
+
+#: wall block, stationary and blocks movement
+
+~: water block
+
+@: pump block, spawns water below it
+
+O: drain block, removes water around it