On the Subject of Toppling Dominoes

Knock ‘em down! Look at ‘em go!.

For those familiar with the original manual.

3+ ports	t+b
3+ batteries	t-b
Any lit ind.	t*b
Otherwise	b/t

Lit > unlit ind.	Asc.
Unlit > lit ind.	Dec.
3rd in SN even	Dec.
Otherwise	Asc.